The PWM signal in question is fed through a piezo ... For not using a scope, this method is pretty accurate, and only uses two discrete circuit components (the resistor and the speaker).

In Figure 1’s PWM DAC interface, DPST switches U1a and U1b accept a 10-kHz PWM 5-V signal to generate a +1.25 V to -8.75 V “ADJ” control signal on C2 for the U2 regulator. Vout = ADJ – 1.25 V, so ADJ ...

In the last installment of Circuit VR, we walked around a simplified buck converter. The main simplification was using a constant PWM signal. The result is that the output voltage is a fixed ...

Instead of the conventional approach of backing up a DAC with an amplifier to boost output, this design idea charts a less traveled by path to power. It integrates an LM317 positive regulator with a ...

The four-phase PWM controller pairing with Alpha and Omega’s benchmark DrMOS exhibits the best system efficiency for NVIDIA’s Blackwell GPU platforms.