Apr 20, 2007 · A Pmos depletion mode transistor conducts fully when its gate is at the same DC voltage as its source. It is cutoff when its gate is more positive than its source. Look up the …

Sep 3, 2011 · My circuit designs should be regarded as experimental. Although they work in simulation, their component values may need altering or additional components may be …

Oct 21, 2022 · Below is the LTspice simulation of the circuit using a low-cost LM431 adjustable reference in place of the Zener, so you can set the voltage to the desired value with pot U2. …

Jan 2, 2015 · The circuit is to drive a 12V, 3A LED Module (for simplicity). The inputs are from 2 pins of microcontroller (PIC @5V). One pin controls one channel of NPN darlington transistor …

Aug 21, 2011 · Hello, I was just wondering about the orientation of the High side switch in a synchronous boost converter. For PMOSFETs the source terminal is usally tied high, so would …

Mar 29, 2014 · This circuit is a little more complex but it can generate a voltage drop of less than a volt (about one base-emitter voltage drop) during normal operation depending upon the …

Jul 31, 2023 · Hi all, In my application, I want to drive a load using either 3.3V (from a LDO) or from a 5V USB supply. I also want to be able to enable or disable this 3.3V by using a PMOS …

Mar 18, 2022 · think these circuits are classified as pass transistors. For example, look at image part "(d)" below. The drain of PMOS is at higher potential compared to the source, and the …

Aug 31, 2007 · Note that the MOSFET is connected "backwards" on purpose because the FET will conduct in both directions. Rather than using a rectifier diode which has ~0.7V or higher …

The On– Chip Schmitt Trigger circuit allows a simple RC filter at the input to remove possible line volt-age transients. An internal pull– up resistor is provided. CR Input: (Note 1) When AC …