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Friends, look at this idea: You can change IR2153's duty cycle if you control the low side signal via transistor and UC3843. Just feed 100khz pwm from UC3843 to the base of a BC547 in emitter follower configuration and feed IR2153's low side signal (50khz) to the collector. The result is 50khz...

Hi, I designed this circuit with discrete high side bootstrap driver. I decided not to use IR2110 or transformer gate drive. I dont know why but I hadn't luck with IR2110. Lets start with the controller part: I used the first error amplifier for feedback regulation and the 2nd for current...

Hi there, Lets talk about IR2161. I designed this schematic - http://bukvi.bg/ir2161-0xff-schematic.png

Hi, this is my amp which worked very well with IR2111 but it doesn't work with IR2110. With ir2110 there is a cross conduction. Fake chip or ir2110 is only high side driver without dead time ? firstly i tried with a chip buyed from aliexpress. secondly i buyed one from another place because i...

Hi there, I desoldered these parts from a MEGA SMPS BOARD. IRF1405 - 55V 330W Power Dissip IRF840A 32CTQ030 30A 25-30V SCHOTTKY RECTIFIER 42CTQ030 40A 30V SCHOTTKY RECTIFIER 40L15CT 40A 15V SCHOTTKY RECTIFIER R860P2 - single diode for flyback use ;) STPS40H100CW 40A 100V High voltage...

What do you think about L293D as output stage for a class D project. It doesn't need high side driver + it doesn't need deadtime too. It has two full bridges for two channels (stereo). Just perfect for a portable battery supplied setup. Im wondering how many watts i can get with it.

I want to show you how to make a voltage regulation with IR2153. This same principe is working with timer 555 and TNY chips. The principe is not changing the pulse width or regulating the frequency. The principe is turning off the IC when the desired voltage is achieved. Im an inventor...