Questions tagged [p-channel]
The p-channel tag has no usage guidance.
71
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P channel MOSFET for PWM Peltier control (Arduino)
I want to control the power of a Peltier device using a MOSFET PWM controlled by an Arduino.
In order to "smooth" the power going to the Peltier, I want to add a capacitor in parallel.
The &...
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3
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Driving a P-channel MOSFET with high voltage input
I designed a buck converter as an MPPT charger using high side switching. It seems the signal on the gate of the MOSFET good. If a solar panel with low voltage like solar MPPT 18volt there isn't a ...
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Connecting circuit to ground when control voltage is 0 V with a P-channel MOSFET
I'm trying to control a Playstation 2 dance game controller with an external voltage using P-channel MOSFETs and I think I am out of my element here as I can't seem to figure out why this isn't ...
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P-Channel MOSFET circuit
I have the circuit below on a PCB. I am trying to provide 48V across R5 at power-on, then after a delay, disconnect R5 from the input power.
I have three questions regarding this circuit.
Question 1: ...
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Has anyone ever obtained a P-Channel Depletion mode power mosfet? [closed]
I cannot find any P-Channel Depletion mode mosfets at any supplier.
I see this question from 10+ years ago: Where are the depletion PMOS transistors?
But has ANYONE been able to source a P-Channel ...
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How do I switch on an LED strip when the control signal is pulled low?
So I'm basically trying to take a control signal from one device (5 V), and use it to control a 12 V LED strip (1 A or more).
The control device is an electronic dance pad (StepManiaX Stage,or Dance ...
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Pulling pin low through PNP BJT?
I'm using a battery charger/buck regulator IC that turns on if the pin named "shphld" is momentarily pulled low, and turns off if the pin named "shpact" is momentarily pulled high. ...
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Will the gate driver circuit of MOSFET work?
I have implemented this circuit in the hardware. The desired pulse output across 2 Ω is 28 V output, minimum 10 A output current with 100 kHz frequency and 10% duty cycle. The drain pulse is not ...
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Wireless charger reverse engineering
I am trying to figure out how to design an H-bridge for a wireless charger. And I thought that reverse engineering an off-the-shelf one might give me some clues.
I might have made numerous mistakes ...
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12v / 24v P-Channel MOSFET Driver Issues
I'm building an open source hardware board for "home automation" / digital switching of DC loads that is mostly focused on boats / marine applications.
To give some context, here are some of ...
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Low side P-FET usage is opposite of expected, what did I do wrong?
I'm working on a circuit that should close a reed relay (normally open) when TI/COUT is low and open said relay when TI/COUT is high (6V).
I'm using a P-FET low side transistor to ground the relay &...
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P-channel MOSFET switch is broken in high voltage
i want to use a mosfet switch 30V voltage
the motor operates when the temperature is high
before this circuit i changed R9, R10
R9 -> 4K7
R10 -> 680
and MOSFET was broken
so i changed R9, R10 ...
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2
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331
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Can I use a P-channel MOSFET to switch a lower voltage?
I have a BLE module. The reset is pulled up to 1.8V. The IOVDD is 3.3V. I need to use a programmer that can reset the module but the programmer is 3.3V. Is it ok to use the circuit below to make the ...
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Driving a 12-to-24 V P-channel MOSFET with TTL
I'd like to control up to 16 motorized valves with an ESP32. I'm using 74HCT595 shift registers (5 V outputs, 3.3 V input logic) to drive 12 V relays via NPN transistors. But the relays are pretty ...
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IRLML9301PBF as high side switching for 5 V, 2 A load from a 3.3 V uC?
Circuit:
simulate this circuit – Schematic created using CircuitLab
I would like to cut off the power to my APA102-LED-strip during uC sleep -
as the standby current of these strips is relative ...
