This is a very cool electronic project to control dc loads using a very cheap and reliable design. This video also explains ...

Presented here is a PWM amplifier circuit (Figure 1) built around a two quadrant driver circuit that can amplify 3.3V or 5V signals to a higher level. Figure 1 PWM amplifier circuit built around a two ...

The circuit of Figure 2 is essentially an inverting amplifier with high output-current capability. It filters the PWM waveform from IC1 and provides a current- and voltage-boosted output that varies ...

After 10 minutes on the naughty step, I had another go… V1 is the 12V input pwm, DB’s suggested circuit is in the middle, mine inspired by DB’s constant current approach is on the right, and the ...

The circuit described here uses the ubiquitous LM431 shunt regulator to implement a second-order Sallen-Key low pass filter together with a level shifter (see the figure). Compared to the ...

The required switching sequence in one PWM period to provide 30% bus voltage is 70% short circuit to low and 30% driving. In Scheme Zero, only high-side switches modulate.

I have been looking at that circuit for some time , bear in mind it is not a true PWM circuit. The TC series of chips come in different temperature versions. Using a 2N3055 or any transistor to ...

For the example circuit in Fig. 6, the PWM begins a cycle with C1 discharged to 0 V, and the cycle ends when the voltage on C1 reaches 2.5 V. The switching frequency is chosen to be 125 kHz.