Multistage transistor amplifier trabalhos
POWER DELAY OPTIMIZED ADDER FOR MULTIPLY AND ACCUMULATE UNITS Area: LOW POWER The prevalent blocks used in ...delay elements. Better the performance of adder structure better will be the performance of multipliers in total aspect. Reducing power dissipation, delay and area at the circuit level is considered as one of the major factors in developing low power systems. TOOLS USED: TANNER EDA. A HIGH SPEED 8 TRANSISTOR FULL ADDER DESIGN USING NOVEL 3 TRANSISTOR XOR GATES Area: LOW POWER The project proposes the novel design of a 3T XOR gate combining complementary CMOS with pass transistor logic. The design has been compared with earlier proposed 4T and 6T XOR gates and a significant improvement in silicon area and power-delay product has been obtained. ...
I’m looking for a male or female voiceover talent (French Canadian native only) to record 500 words approx. You will need to be available to record up-to two retakes of ‘any’ or ‘all’ the words, if necessary. Please send me an mp3 d...male or female voiceover talent (French Canadian native only) to record 500 words approx. You will need to be available to record up-to two retakes of ‘any’ or ‘all’ the words, if necessary. Please send me an mp3 demo showcasing your ability to record several characters-voices and the quality of your recordings. Include in your reply a list of the gear you will use, like Microphone, Pre-Amplifier, Audio Interface, Recording Software (brand and model) Audio File Specs: - AIF or WAV...
We need an optoisolated , 1kv , system. It need to have in input a -10v. +10v. Analog signal and give in output the same signal, but optoisolated. This is a 1:1 amplifier with the following charatteristic. Optoisolate 1kv between input and output. Amplification. 1 Bandwidth -3db. 50 khz Input. Diffferential Output differential Input impedance. 20 kohm Output impedance less than 100 ohm distorsion. Max 0,01 % Number of channells 4 All input can have the same power supply All output can have the same power supply All input and output with bnc on the printed circuit Dcdc converter will be used to generate 2 different and optoisolated voltages. Project will include design of printed circuit board. Trik....... We found many example using voltage ...
...belong to us at completion of the project. Prior code was based on this calculation to control speed: Position sensor: ø= arctan((XL + XC)/R), onde XL= ωL e XC= 1/(ωC) ø’1= arctan((XL + XC)/R) Drawing attached shows design. Below is the BOM for the assembled PCB 1 MICROCONTROLER PIC18F13K22-I/SS 1 VOLTAGE COMPARATOR LM339 SOIC-14 1 VOLTAGE REGULATOR 78M05 DPAK 3 NPN TRANSISTOR MMBT2222A SOT-23 3 P-CHANNEL MOSFET SI4425P SOIC-8 3 N-CHANNEL MOSFET SI4420N SOIC-8 1 LED BLUE H.I. 0805 6 RESISTOR 47K 5% 0603 3 RESISTOR 10K 5% 0603 3 RESISTOR 680R 5% 0603 6 RESISTOR 100R 5% 0603 1 RESISTOR 1K 5% 0603 6 RESISTOR 30.0K 1% 0603 3 RESISTOR 7.50K 1% 0603 3 RESISTOR 15.0K 1% 0603 6 RESISTOR 1.00K 1% 0603 9 CERAMIC ...
Hi, Would like to design Low power Amplifier by using BSIM3 - 35um technology. Specifications: Bias Current - less than 1ua Open loop gain - 80db Gain peaking < 3db Voltage follower 3 db bandwidth > 20Mhz settling time : 1% settling time for 1 volt step <500ns Any method of desing by using BSIM3 model will be fine. Thanks, Sathish
Hi, Would like to design Low power Amplifier by using BSIM3 - 35um technology. Specifications: Bias Current - less than 1ua Open loop gain - 80db Gain peaking < 3db Voltage follower 3 db bandwidth > 20Mhz settling time : 1% settling time for 1 volt step <500ns Any method of desing by using BSIM3 model will be fine. ...
I am looking for the electronic circuit design for a TTL signal booster / amplifier Input signal is TTL based, 0-3.3v, square wave up to 60Hz Output must driver a camera trigger input, with 5-24 v input 5 mA minimum. See attached document for required output. Need to rive up to 4 such trigger input. Available power supply is 12V DC.
The project consists of the following: Circuitry to amplify an electret microphone such as or And the MSP430 code to convert the readings using an ADC into a 0-1024 value. Deliverables: Gerber files of the circuitry. Bill of materials. C/C++ Code compatible with MSP430G2553 from texas instruments. A very short video showing the values read by the MCU when the circuitry is exposed to different noise levels.
Por favor, Cadastre-se ou Faça Login para ver os detalhes.
...scale and offset an analog signal from 0 to +3.3V to -1 to 7.5V Part 2: the opposite conversion from input -1 to +7.5V to output 0 to +3.3V The 2 inputs must be protected from overvoltage conditions. Maximum bandwidth of the signals to be converted is 20kHz. The board where this circuit will be used has a +5V power supply so the circuit must also include a DC-DC converter to power the amplifier rails.( a ready part like the Murata MEA1D0512SC can be used). Suggestion for a better suited alternative are welcomed. The cost of the chosen components to implement the circuit is not critical as this will not be a mass produced design. Offset voltage error should be less than 1mV. The parts should be chosen based on availability and performance. A PCB layout is not needed. O...
Ultrasonic Sound Activity Monitor Detection circuit consisting of an ultrasonic microphone fed into an amplifier and high-pass filter to detect ultrasounds within a 12kHz-150kHz waveband. Detected sounds are further amplified before being rectified and fed to an op-amp comparator to adjust sensitivity. Detected sounds are fed to a Count Logger circuit with an adjustable logging interval. This should be software-adjustable in 3 steps i.e., 5, 10, 15 minutes. Logging interval (minutes) 5 10 15 Count Sampling interval (Seconds) 1.17647 2.35294 3.529412 Full memory capacity time (64,000 readings) (months) 7+ 14+ 22 Example: To allow logging at a rate of one reading of 255 counts per 15 minutes (900 secs) digital output is sampled at 3.529412 sec intervals (900/255). At this rate a co...
I would like someone to write a program for a PIC microprocessor, ideally using MPLab from Microchip technology Inc., although I would consider authors using other environments, providing the code was in C It is to act as a watchdog and controller for an RF amplifier unit, and The author will need to help in selecting the appropriate PIC and display for the task Ideally the PIC should be available as a DIP profile, non surface mount to make work with the prototype easier, although if not practical, then I am open to suggestions and use a development kit from Microchip (More details in attached document). It should interface some sort of LCD or OLED monochrome display, (typically 32 x 128 pixels) display to allow display of parameters and allow pre-set adjustment of power...
Ultrasonic Sound Activity Monitor Detection Circuit The input circuit consists of an ultrasonic microphone fed into an amplifier and high-pass filter to detect ultrasounds within a 12kHz-150kHz waveband. Detected sounds are further amplified before being rectified and fed to an op-amp comparator to adjust sensitivity. Count Logger circuit Ideally the logging interval should be software-adjustable in 3 steps i.e., 5, 10, 15 minutes. Logging interval (minutes) 5 10 15 Count Sampling interval (Seconds) 1.17647 2.35294 3.529412 Full memory capacity time (64,000 readings) (months) 7+ 14+ 22 Example: To allow logging at a rate of one reading of 255 counts per 15 minutes (900 secs) digital output is sampled at 3.529412 sec intervals (900/255). At this rate a count logger accepting 64,...
Electronics homework. You should be live available tomorrow 12:30 eastern time.
...REQUIRE ENGINEER TO COMMUNICATE ON SKYPE AT LEAST EVERY 2DAYS. I need to create schematics and pcb layout files of audio devices All of these are working on non - symetricall power supply of 10-16,5-18V{battery powered}, they have to work on such voltage levels As this is battery powered, voltage varies from 18 to 10V, still there is dc -dc converter that is used all the time for power amplifier, so you can use power from this one Things that have to be created> 1. mono mixer board with adjustable 5 inputs, one master pot all 5 have regulation of bass, treble +-15db These 4 are balanced, able to accept unbalanced signal as well, 1 is unbalanced, used for receiving RF signal from audio receiver module, as this module is stereo there is need to crea...
Hello I need to create audio device with tda1562 chip{or you can suggest somethin better say with transistor and dc dc converter} BY BIDDING ON THIS PROJECT YOU AGREE WITH MINE STATEMENT THAT I WON`T PAY FOR PARTIAL PROJECT, BID ACCORDINGLY, READ CAREFULLY I require engineer to communicate on skype at least every 2days TDA1562 amp module with battery management system, with bass, treble regulation, IN input with volume potentiometer for line in level, switchable with switch for guitar/mic input, bluetooth module for receiving signal, say from mobile phone the amp package would be affixed to Aluminum cover, board would be affixed to this also, 150mm wide, 120mm long these are limits of the board on the amp input there is subsonic filter of 24db,adjustable fro...
...disconeected from the rest of the system so external power would at that time supply amplifier itself and also charging of the batteries charging would be done individually, each of 4 batts have it`s own dc dc converter{mp2307 modules i would provide} that would convert power from 12v to 4,25V to provide sufficient I so batteries would be charged soon every battery requires somethin like comparator that would take care about the fact when battery would reach 4,17v charing would be terminated, and would be repeated only in case voltage of battery would run down to 3.90V when batteries are being charged, it is necessary to disconnect one from other one...relay is most simple solution, still i would prefer transistor batteries voltage can be measured by 3diodes, low ...
Hi, I was wondering if you'd ...wondering if you'd be able to carry out the following work for me and would like to discuss on Skype if you could provide me with your Skype Username: 300 Google +1 for 2000 Facebook Fans for 520 Social Bookmarks for with: Keywords: music gear,guitar,amp,effect pedal,speaker,boutique amplifier, boutique effects,forum,discussion,bulletin board Anchor Texts: music gear discussion forum discussion forum for musical instruments discuss guitars, amplifiers and effects pedals boutique musical instruments information discuss music gear and politics I can be contacted at admin@ or preferably on Skype as Nabraxas. Thanks in advance.
...disconeected from the rest of the system so external power would at that time supply amplifier itself and also charging of the batteries charging would be done individually, each of 4 batts have it`s own dc dc converter{mp2307 modules i would provide} that would convert power from 12v to 4,25V to provide sufficient I so batteries would be charged soon every battery requires somethin like comparator that would take care about the fact when battery would reach 4,17v charing would be terminated, and would be repeated only in case voltage of battery would run down to 3.90V when batteries are being charged, it is necessary to disconnect one from other one...relay is most simple solution, still i would prefer transistor batteries voltage can be measured by 3diodes, low , med ,...
Por favor, Cadastre-se ou Faça Login para ver os detalhes.
Por favor, Cadastre-se ou Faça Login para ver os detalhes.
Hello THIS DEVICE WORKS FROM ...master signal, also switchable to pass/not to pass via equaliser, this is set to broadcast at maximum possible level before cliping then this signal traveles to 2way crossover, 24db likwitz riley aligment, set at 2khz there is vu meter- 10point, switchable to monitor master signal or to monitor amplifier input signal as this device works on batteries, it has its bms which in case voltage drops bellow 10V needs to disconnect battery from load, via say relay{but i would prefer transistor} also this amp is working on 32V signle supply which requires dc dc converter{already made} this requires capacitor compensation, on in and out of this dc dc also when start up, amp should be connected delayed, or speaker output should be c...
Summary: Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username Then, for each schematic: - Load up the source schematic (a list to do is posted below) ...Stepper Motor Driver Stepper motor driver compatible with anything that can output a digital 0 to 5v pulse. Schematic : Note: contains disconnected nets. -- For some examples of completed entries, see: When placing your bid, keep in mind that you will need to spend some time getting familiar with the tool. Thank you!
Summary: Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username Then, for each schematic: - Load up the source schematic (a list to do is posted below) ...Stepper Motor Driver Stepper motor driver compatible with anything that can output a digital 0 to 5v pulse. Schematic : Note: contains disconnected nets. -- For some examples of completed entries, see: When placing your bid, keep in mind that you will need to spend some time getting familiar with the tool. Thank you!
Lets start with some background. I want to have a robot that automates all combinations between 0000 - 9999. what i want it to accomplish is a machine that can find certain combinations on a hand held GPS system. the easiest way i can see it working is having solenoids fo..."1" to activate once, the solenoid i designate 2 to light up once in that order. i want that to continue until the count reaches 9999 then terminate. Here is a video of what i want accomplished. Hardware: Arduino Uno microcontroller x11 9v push type solenoid X11 1k Ohm Metal Film Resistors 1/4w 1% X11 TIP120 transistor x11 1N4004 rectifier diodes x1 9V 1000mA 1A ,AC/DC Main Wall Power Adaptor 2.1mm
...heavy customizations to the script and site. The main idea is to have the same fatures as this site and some extras: here is the things needing to be done: 1: integrate amazon api into site, for users to pick items they want from a live amazon directory 2: ebay api into site, for users to pick items they want from a live ebay buy it now only directory 3: cash, points amplifier for site, this is were users can buy a package which increases any points or money they earn by a certain percentage 4: google api for live earch on my site, were users can search for anything on google, also i should have the ability to block certain websites, or certain keywords, and so on 5: shopping cart for ebay and amazon products 6: games 7: integrated forum 8: forum admin area settings
...heavy customizations to the script and site. The main idea is to have the same fatures as this site and some extras: here is the things needing to be done: 1: integrate amazon api into site, for users to pick items they want from a live amazon directory 2: ebay api into site, for users to pick items they want from a live ebay buy it now only directory 3: cash, points amplifier for site, this is were users can buy a package which increases any points or money they earn by a certain percentage 4: google api for live earch on my site, were users can search for anything on google, also i should have the ability to block certain websites, or certain keywords, and so on 5: shopping cart for ebay and amazon products 6: games 7: integrated forum 8: forum admin area settings
...heavy customizations to the script and site. The main idea is to have the same fatures as this site and some extras: here is the things needing to be done: 1: integrate amazon api into site, for users to pick items they want from a live amazon directory 2: ebay api into site, for users to pick items they want from a live ebay buy it now only directory 3: cash, points amplifier for site, this is were users can buy a package which increases any points or money they earn by a certain percentage 4: google api for live earch on my site, were users can search for anything on google, also i should have the ability to block certain websites, or certain keywords, and so on 5: shopping cart for ebay and amazon products 6: games 7: integrated forum 8: forum admin area settings
Hi all, I am looking for someone to design the electronic circuit for a customized speaker. Please see the specifications that I require. Please give me a quotation based on the following. We are able to compensate attractively. Specifications: 1. Performance requirements: The device must play 18000 - 22000hz. Audio Amplifier: Minimum 8Watt - 15Watt. The device must run on AC power and starts playing once the power is turned on ( meaning there is no on/off switch ) and loops; meaning it will keep playing forever until the power gets switched off. The device will play the MP3 tracks from a SD card that is embedded inside the box. This SD card must not be visible from the exterior and not be able to remove easily. (If someone wishes to change the SD card, they will have...
A consultant needed to support our Electronics Design team on a PCB re-design aimed at eliminating susceptibility to mobile phone interference. The product is used in an automotive application and contains a class-D audio amplifier which amplifies audio signals from microphones. The circuit is susceptible to TDMA noise and badly picked up (otherwise performance of the circuit is satisfactory). Substantial research has been done and relevant knowledge acquired which lead our design team to identifying number of improvements both in filtering and PCB layout. In order to have full confidence we seek for a consultant to review the design and verify that sufficient changes have been made and propose further improvements. All design and layout activities remain a responsibility of ...
Im looking for someone to create an ebay shop for me and list 150 products for me - All products will come from my website All pictures need to be customized to our shop with a phone number on the pic example - the shop should look new and exciting
Por favor, Cadastre-se ou Faça Login para ver os detalhes.
... NOTE: The PIC component is "PIC16F631" and the RTC is "DS 4. ClockIt ClockIt is a basic alarm clock with buzzer based on the ever popular ATMega328. Schematic: 5. Audio Amplifier Kit A fully functional, two-channel audio amplifier, complete with a standby switch, volume control and indicator LEDs. In this kit, the STA540 is configured as a dual bridge amplifier capable of delivering up to 2x 38W (4Ω at 18V). Power supplied to the kit directly powers the STA540 and should be within 8 to 22V. Schematic: 6. High Efficiency 9-volt LED Flashlight
... Schematic: 5. Class-AB Audio Amplifier Discrete transistor amplifier with the efficiency of class-B and the fidelity of class-A. Schematic: 6. Class-D Audio Amplifier Uses transistor switching and pulse-width-modulation (PWM) to control a speaker with high efficiency. (see attached PDF file) 7. TV Remote Jammer Uses a 555 timer and IR LED to block signal from a remote control. http://hackaday
Development of an app that replies microphone signals in the headset with the mimimum possible delay (real time) The OS is S60 3rd Edition Feature Pack 2 (Nokia N78). I need this program in pys60, source code included. optionally - mix microphone and other audio source (FM radio, internat radio, network, audio file) - record mixed audio on the phone (SD card)
Assemble simple thermostat with 12VDC relay and adjustable temp setpoint via variable resistor. Test and Debug. Make revs to existing mfg and design files. Parts and board will be shipped to you. Changes already identified include increase in trace size and moving transistor board holes into triangle configuration rather than straight. Possible BOM will need to be modfied. The board is about 2 x 2.5 inches and has about 22 components including a 12VDC relay, variable resistor and 16 pin op-amp IC. I have purchased all the parts already and have a completed BOM document, electrical schematic and gerber files. Board is based on previous design, but I have not been able to get the unit to work correctly yet. Probably some small error. Your job is to get it to work...
Summary: Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username Then, for each schematic: - Load up the source schematic (a list to do is posted below) - Search for each component on ...jammer. Schematic : Note: This one could be too hard due to the lack of disconcerted nets and random pin placements done by eagle. -- For some examples of completed entries, see: When placing your bid, keep in mind that you will need to spend some time getting familiar with the tool.
- Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username/password Then, for each schematic: - Load up the source schematic (a list to do is posted below) - Search for each component on - Enter in any missing components Then, you will manually enter in the...ack-main% Note: This one could be too hard due to the lack of disconcerted nets and random pin placements done by eagle. 9. Ybox A set-top box. Schematic : -- For some examples of completed entries, see:
- Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username/password Then, for each schematic: - Load up the source schematic (a list to do is posted below) - Search for each component on - Enter in any missing components Then, you will man...net/2010/08/ 7. RF Detector 144-146 MHz RF detector. For use in detecting RF leaks on the amature radio bands. Schematics and BOM: -- For some examples of completed entries, see:
- Manually enter electrical schematics into schematic capture tool Get an account on and let me know your username/password Then, for each schematic: - Load up the source schematic (a list to d...-Magnetic-Sniffer-Probe-Whistler-Thi/step5/Schematic/ 9. A digital read for an automobiles speedometer and tachometer. Schematic : 10. An amplifier to increase volume going to headphones. Schematic : -- For some examples of completed entries, see:
I am designing a breathalyzer to install in bars. I need a PCB designed to have a bill acceptor connected to it and also an alcohol sensor connected to it. The voltage from the sensor will have to go through an amplifier. This PCB will be connected to a computer in the machine. The PCB will also need to have dip switches to place into calibration mode. It will need to be able to take a voltage, interperet it and send a number to the computer to display. I am not in a hurry for this to be finished and I may have some changes or features added that I dont expect you to do for free.
...100KHz square waveform for 20 seconds then a 6MHz sine wave for 15 seconds. While channel 2 outputs 300KHz sine wave for 5 seconds then 450KHz sine wave for 5 seconds then 3MHz for 10 seconds then 185KHz square wave for 20 seconds. Each channel will continuously loop. Microprocessor - Atmel AVR (preferred) but will consider others AD9833 Programmable Waveform Generator AD603 Variable Gain Amplifier Specifications: Frequency range: 100Hz – 6MHz (Sine), 100Hz-1KHz (Square) Voltage Input: 9-12VDC Wave Amplitude: 0.5V Vpp~9V Vpp (software adjustable) Bias voltage: -4.5V~4.5V (software adjustable) General Notes: • All code needs to be well annotated. • Price needs to include all hardware, boards, components and whatever it takes to mak...
1. Deisgn of a Printed Circuit Board from the attached diagram. 2. Production of 5 x of these boards including component sourcing and assembely. 3. Advise on: In testing "Q1" is a TIP120 transistor, advise if this is the most suitable base on the the motor "MT1" being 12V with up to a 1Amp current draw. 4. Advise on: Posibility of introducing an opto coupeler to isolate the PWM, Gnd & "Any digital output" from the 12v supply.
...ratio of voltage to frequency a constant (V/F drive). As a first step in this direction, this report deals with varying the speed of a single phase motor by varying the frequency of the supply system without considering the ratio of voltage to frequency. A single phase bridge inverter is used for this purpose in which the power circuit consists of four Metal Oxide Semi-conductor Field Effect Transistor (MOSFET) and control circuit is built with pulse width modulation scheme like in any commercially available VFDs in the market. A sinusoidal wave generated by an IC 8083 is compared with a triangular wave generated pulses were used to fire MOSFETs operated in positive half cycle of the sine wave generated. Necessary care is taken while transferring these pulses to the gate circui...
Development of an ultra low-noise, low-THD on-board Audio amplifier. Requires profund experiences and Audio engineering skills.
...able to demodulate FM modulated PAL and NTSC video carriers. The demodulated audio and video FBAS shall be in D1 good quality wiht correct video sync. Functional blocks a) VHF IF low noise amplifier (15 to 75 MHz depending on design) b) Bandpass filter (21 to 27 MHz depending on deviation) c) FM Video demodulator with AGC and AFC output (automatic gain & automatic frequency control) d) FM Stereo audio demodulator PLL with bandpass filter ( 6.0MHz, 6.5 MHz for example) e) PAL and NTSC deemphasis switchable f) High quality video amplifier for 1Vss e) High quality stereo audio amplifier All components shall be in SMD, we can manufacture the pcb if a DSP or FPGA is used 2 pcs preprogrammed units have to be sent for testing. The hardware design a...
Hello, I require an experience and professional SEO/Linkbuilding Service to get my Site on Rank 1 on Google. My site is new. I need onpage+offpage SEO. Below are some Keywords which needs to be promoted. Vortex Tube/ Tubes Air knife/ Air Knives Panel Cooler Air Amplifier I would prefer if this can be done at earliest but you can suggest your own required time in your bid. Only White Hat Tactics/Techniques/Methods should be used and Google guidelines/Terms and Conditions should be followed GUIDELINES: * Links must be strictly from: Google PR2 or higher Pages (not the homepage of the website, but the actual page where the link is placed) * ALL backlinks must be theme related to my website * ALL backlinks must be DO FOLLOW... All links will be checked. ...
Phase 1 of the project will require a well documented program in C for PIC24F (PIC24FJ256GB106) d...screen formats, basically the current /max/min values of the sensors. A simple breadboard or curcuit diagrams will be required to connect at 9V battery to make a functiong system. In summary, the system specified below currently exists 1 PIC24F Development board 2 Sensor - Strain gauge whetstone bridge (differential sensor) will need to be single ended using opamp 3 Signal conditioning amplifier development board for the above (set zero point and gain) 4 Sensor - Analog Gyro 5 Sensor - Six axis analog accelerometer/gyro Phase 2 will require the attachment of a GPS system using UART or bluetooth but this will be bid separately, however some experience in this area would be an ...
Por favor, Cadastre-se ou Faça Login para ver os detalhes.
