half bridge

Hi, I have built an smps, Half Bridge using SG3525 + IR2110. It works fine - Except for changing(control) the output voltage by changing the duty cycle. The nominal dc voltage is 270. Half is 135v The transformer core is E42/21/15 Primary windings : 20 Secondary 4+4 : gets 32v - needed...

Hello all, I'm designing my first half bridge boost converter and I've got these two problems: These transients that appear no matter what simulation model of MOSFET I use. I've got these massive spikes. They even appear when I insert larger diodes onto the MOSFETs. Is this an artifact of the...

Hello, I’m using a PDME2-S15-S24-S isolated power supply to power the IGBT side of the gate driver. The power supply outputs 24-ish V, and I’m using a TL431-Q1 adjustable shunt regulator to create a +16V and -8V rail. When I measure the supply rails, I can confirm +16V and -8V are present...

Hi, I am trying to drive a half-bridge. circuit-1 is the main circuit diagram relevant to this post. circuit-2 contains the remaining circuit. The CMOS-H pair is driven by Q, and the CMOS-L pair is driven by Q-INV. CMOS-H drives IPP-H, while CMOS-L drives IPP-L. Q, Q-INV, and the rest of the...

I recently purchased a H-bridge board that uses ST L6384d driver chips to drive 4 N mosfets. The input to the driver (pin 1) comes from a dual input NOR gate and the DT (pin3) is pulled low thru a 270k resistor. The gate has a Direction and PWM input. I have tested the board and it functions...

Hi I want to simulate this IR2103 based half bridge circuit but LT spice seems to be throwing an error: "Analysis: Time step too small; initial timepoint: trouble with node "u1:_gd_template:_input_stage:_lin_th:outp"" I got the spice model for the IR2103 from...

I really appreciate if someone can help me a bit with this project. Its a half bridge topology DC-DC converter that takes 12V on the Input and transphorms it into a simmetrical 80V output (Maximum). The output voltage will be adjustable from ±18V to ±80V. I am using the SG3525 IC for this...