Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
powerled hobby
Thanks Brian.
I have tried to give a 100Hz pulse width signal to the PWM pin of the demo board, and the input (Vin+ and Vin-) is a standard 12Vac. However, the LED flashs seriously. So I don't know what signal should I provide to the PWM or VDI pin? I also tried to use a 5KHz...
pr4101
I want to make a circuit in order to control the brightness of a power LED(5W). I brought a LED driver (PR4101) and its demo broad already. And my circuit is operated at 12Vac (or may be 24Vac) input.
In the PR4101 datasheet (P.10), there is an explanation of "typical application with...
Re: op-amp simulation
I find that the input and output waveform become sine wave when I use "Harmonic Balance" to simulate it. I don't know whether is it correct or not ?! And which one of the source , ac voltage source or power source, should I use? Both of them can set the desired freqeuency...
Does someone know how to simulate a typical non-inverting operational amplifier in ADS? I have tried to simulate it as showed in the following schematic diagram. I want to use 100KHz sine wave as a input source and I expected the output should be the enlarged sine wave. However, the a.c output...
I want to make a attenuator for a 100KHz signal. I built the circuit as showed in the diagram. I find that when I change the control voltage, the signal will attenuate but also be distorted ( e.g. a sin wave input will not give a perfect sin wave output when it is attenuated). Does anyone know...
Hi! I am trying to make a amplifier for 100KHz. I use a commercial op-amp connected to two resistors to realize a non-inverting amplifier likes the typical connection. Although it can provide voltage gain, i find that there is around 30 degrees phase shift for the output when it is compared to...
Does someone know how to make a voltage-controlled attenuator for a 100KHz signal?It would be better if the attenuation resolution is high, so that I can change the attenuation easily.
I am learning how to design an amplifer. And I read some book which stated that the bias circuit should not have any frequency dispersion of envelope impedance in order to minimize the memory effect. How can I know wherether my biasing circuit has frequency dispersion or not? What parameter...
In the two-tone test of amplifier, baseband signals (w2-w1 and w1-w2) will be generated at the output.
Does anyone know the phase of these two signals (w2-w1 and w1-w2) should always 180 degrees out of phase? Or, when the phase of w2-w1 is θ degrees, the phase of w1-w2 should be -θ degrees...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
