Questions tagged [h-bridge]
A circuit using four switching elements which allows power to be applied to a load in either direction. Often used for reversible motor control.
1,006 questions
0 votes
1 answer
71 views
Half bridge inverter for WPT is ringing
Good afternoon. I'm making a circuit for a wireless charger. For prototyping purpose, I'm assembling everything on a breadboard. I have an issue with ringing at the moment the upper MOSFET turns on. ...
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4 votes
2 answers
171 views
What is the purpose of the Zener diode in this circuit?
Source I have a driver circuit that generates pulses to control the H-bridge in an inverter welding machine, as shown above. However, I don’t quite understand the purpose of the 6.2 V Zener diode and ...
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1 vote
2 answers
106 views
H Bridge Circuit Clarification
I am really confused with this H bridge circuit: When the switches S1 and S4 are ON then current flows from V1 to S1 -> Load -> S4 -> Gnd. Now suppose suddenly I turn off the switches S1 and ...
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5 votes
1 answer
411 views
High Voltage H-Bridge "dip" on switch
I have designed a full bridge that handles +/- 2000V. It seems to work fine, however I am getting a voltage dip after the switch. The voltage reaches the setpoint fine, but then dips a couple ...
0 votes
1 answer
58 views
Need help identifying load is showing the voltage from Vcc(12V) to gate driver instead of supply voltage(48V)
I am trying to diagnose problems with this circuit. Some points about how this is intended to work: Charging phase: Q1 is turned on through IC1 to allow bulk capacitors to charge up to intended ...
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1 vote
2 answers
174 views
H-Bridge with IR2110 – VS Node Stuck at Low Voltage, Not Reaching 200V
I'm simulating a full H-bridge in LTspice using two IR2110 half-bridge drivers and four N-channel MOSFETs (IRFP4668). The goal is to apply ~200 V pulses across a solenoid coil by toggling HIN and LIN ...
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1 vote
1 answer
92 views
Controlling H-Bridge motor using different input polarity
I'm trying to control an H-bridge motor using the output from an op-amp-based analog PID controller, which produces an output voltage ranging from -6VDC to +6VDC. I want to control both the direction ...
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0 votes
0 answers
77 views
Making a custom stepper motor driver
I’m currently a first year engineering student building a 6 DOF robot arm and thought of making my own stepper motor driver for the NEMA 17 just to learn a bit more about electronics. I have all of ...
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