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Results tagged with h-bridge
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user 3966
A circuit using four switching elements which allows power to be applied to a load in either direction. Often used for reversible motor control.
3
votes
1
answer
784
views
Return Paths of Parallel FETs
I'm attempting to design an H-Bridge which can supply 24V at 60A. As 60A is a lot of current I decided to parallel upto 4 FETs per leg to split the current.
I am using a MIC4102 2A driver to drive th …
- 5,439
3
votes
2
answers
9k
views
Driving H-Bridge Inverter via AVR (trilevel or bilevel PWM)
I'm attempting to design an inverter that will be driven mainly by an AVR uC. The H-Bridge will consist of 4 IR840 N-Channel MOSFETs. The left and right hand side of the H-bridge will be driven by two …
- 5,439
10
votes
1
answer
924
views
Why do capacitors across my FETs minimize ringing/distortion?
I'm designing a 24V to 350V DC-DC Converter based on a H-Bridge. The power requirement is 500W and the circuit operates at 20KHz. The design works fairly well and I've achieved about 90% efficiency at …
- 5,439
1
vote
3
answers
5k
views
High Inrush Current Causing Large Voltage Spikes
I have a H-Bridge driving a 1200VA 20 kHz transformer. The H-Bridge is rated for 1000W (24V, 42 A). The circuit works very well when VBatt is 14V but the FETs die whenever VBatt is 24V. I found out th …
- 5,439