A novel full-wave rectifier turns an audio power amplifier into a simple modulator, that is then used to modulate an ...

The most common type of power supply today is the switching supply. These units use pulse-width modulation (PWM) to regulate output. Supplies today employ several different PWM circuit configurations.

In some power-supply applications, the pulse-width-modulator (PWM) controller is powered up from an auxiliary winding tapped off the power stages transformer (Fig. 1).

Supply Modulator (SM): A circuit that regulates the voltage provided to a power amplifier, optimising its performance in line with the varying envelope of the transmitted signal.

Capacitors C1 and C2 are power-supply bypass capacitors to help isolate the 555 timer (U1) from noise on the power line. Likewise, C3 and C4 bypass op-amp U2.

For one-off projects or prototyping, it’s not too hard to find a wall wart or power supply to send a few joules of energy from the wall outlet to your circuit. Most of these power supplies us… ...

Incorporating fault injection and indication into the circuit schematic and layout can help streamline subsequent testing. I hope these examples inspire you to help make your own design verification ...

Microchip announces the MCP1631 2.0 MHz, high-speed Pulse Width Modulator (PWM). The MCP1631 PWM provides a means to close the feedback loop in Switch-Mode Power Supplies (SMPSs) that use ...

When reaching for a power supply design it’s normal here in 2022 to reach for a switching design. They’re lightweight, very efficient, and often available off-the-shelf at reasonable pr… ...

Toshiba’s new 100V N-ch power MOSFET with low On-resistance and an expanded safe operating area supports miniaturization of power supply circuits.