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High side MOSFET not working @ IR2104 driver

amit tulsyan

Oct 4, 2016
10
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Oct 4, 2016
Messages
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I am also attaching the output waveform of both HO and LO. Red waveform indicates output of HO and yellow waveform as output of LO. But the amplitude of both the signal are different. (It should be same).

With these IC's the boost requires to see a load to common to work.
M.
I will certainly look into your valuable suggestion but may i know the reason for this.
I am working first time on these type of driver.

Thank you
 

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BobK

Jan 5, 2010
7,682
Joined
Jan 5, 2010
Messages
7,682
The amplitude will not be the same. The HO signal goes above Vcc. That is what the boost circuit is for.

Bob
 
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