Questions tagged [low-side]
The low-side tag has no usage guidance.
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Low-Side Driver Not Sourcing Current from Load to GND
I have a circuit with an electronic load in parallel with an optocoupler and a low-side N-channel MOSFET connected to the circuit. The low-side N-channel MOSFET driver is supposed to source current ...
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Control slew rate with low side PWM power transistors
In a special project I'm trying to do PWM current control of a electromagnet like application.
This project is special because it has to pass very strict EMI tests (<30Mhz radiated emissions).
...
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IRF630N MOSFET burns after a couple of times in use [closed]
I made a simple circuit using an IRF630N to drive my loud buzzer. The Arduino code is very simple, just high and low on the pin for a fraction of time. Following is the schematic of the circuit
After ...
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Gate driver circuit design for High-side and Low-side
I am designing integrated DC-DC converter with multiple output. As I am new to Analog design, I am trying to figure out what type of circuit topology is to be used for high-side and low-side switches. ...
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NMOS as a low side switch
I am trying to use an NMOS(2N7000BU) to "turn off" the LM350 voltage regulator. I have an OR gate going into the gate of the mosfet, so either input will turn it off. The hope was to ground ...
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switching multiple supply voltages on same low-side darlington array IC
Say I have an MCU switching a couple SSRs using the ubiquitous ULN2803 at 5V on the "common" pin, but I'd like to switch a 12V mechanical relay with the same chip as well. Checking the ...
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Power control of IC chips with N-Channel MOSFET
I'm building a battery-based wireless weather monitor for hobby project.
for longer battery life, I want to control the power of each subsystem separately.
Let's take a NRF24 modem for example: ...
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Can you use a diode to cancel the body diode of a MOSFET?
From what I understand, MOSFETs inherently have a diode between the source and drain known as a body diode. If I were to use an nMOSFET as a low side switch, would it be bad to have a diode between ...
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ULN2003 low-side switch electrical characteristics
ULN2003A
So I'm currently exploring low side switches. I started off with an NMOS transistor array IC (Open drain), to develop a better understanding I've tried to understand the Darlington transistor ...
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Low-side switch TPL7407LA-Q1 [closed]
I have some questions regarding the TPL7407LA-Q1 low-side switch.
As far as I know, this IC is typically coupled with GPIO pins on a microcontroller, so supply voltages are limited. On the product ...
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How to manage MOSFET spikes in low side switch switch
I've seen lots of questions here about various spikes/overshoots/transients when using MOSFETs but when I try to apply the solutions to my circuit I can't seem to apply them in a way that makes much ...
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Removing the effects of Parasitic Inductance in current sense resistor – Low side current sensing
We are evaluating MIC21LV32 from microchip in one of our applications.
For the current sensing we have used 3 mΩ sense resistor (1206, 1 %, 1 W), as these sense resistors have higher ESL+ parasitic ...
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149
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Gate source voltage of half bridge with bootstrap capacitor incorrect when measured
I have a gate driver circuit (Bootstrap capacitor for high side) as in the given diagram.
I measured the Vgs for high and low side as shown in the figure below. I get the wrong voltage level for the ...
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Is there an alternative to gate drivers like TC4428 or MIC4426 in LTspice?
I need a dual low-side gate driver but there are just single output N channel drivers in LTspice.
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High side current sensing amplifier placed on low side. Possible?
I am trying to build a custom 12 volt battery current sensor for my car as a little hobby project. I want to place a shunt on the negative side of the battery, and get the measurements from there and ...
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