gate drivers

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...

Hello, I have used a Zener diode-based voltage divider to create a negative bias for a gate driver supply but I noticed that the series resistor is getting too hot!! This is the process of how I designed this supply: P = (Freq × Qg × Delta[Vgs] × N ), Where P is the average power, Freq is the...

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...

Hi folks, I have 3 single-channel gate drivers that drive 3 high-power MOSFETs and I want to implement a protection system so that only one MOSFET is ON in this configuration of 3 MOSFETs, even if the software messed up and turned on 2 MOSFETs simultaneously. My approach was something like...

I'm trying to simulate a circuit using IR2110 as the gate driver to build a medium power DC converter. While running the simulation with the given schematics, I get an error on the HO side. The HO waveforms a square wave varying between 40 - 0V, even when the VCC is set at 15V. When I remove...

Hello all, I am trying to build a hardware setup for a PEC9 inverter. Since it has more switches and a different configuration than a regular half/full bridge (meaning no high and low side), I didn't know how to connect the gate driver's power side pins (VDD/VSS) since usually in a half-bridge...

After boosting the 3.3V 20khz pulse wave to 15V using a push-pull stage IGBT gate terminal input. And 24V power is IGBT's collector And I want to use the bootstrap. But it seems that the operation of this circuit is not normal. What is the problem and how can I fix it?

I made igbt high side gate driver circuit. However i couldnt step up the gate Voltage. What should i do?

Hello all, I have been checking the EVAL-ADUM4146 evaluation board for the ADUM4146 gate driver. In this board, they are using a (2W, +15/-3, +93/-185mA) isolated DC-DC converter module which is the R12P21503D. And in the gate driver datasheet, it says: 11 A short-circuit source current (0 Ω...

Hello All, For example, this gate driver from Ti (UCC21520) can drive GaNFET, IGBT, and MOSFET. But can it drive SiC MOSFET? Or maybe the IGBT Gate Driver (NCV57000) from onsemi, can it drive Si/SiC MOSFETs? why not a generic gate driver that can drive all switching devices? Thank you,

Hi guys, I use ir2113 ic for driving IRF260 Mosfets, but IC dont have any output in LO and HO pins when i cheked it with osiloscope, can anyone help me why ir2113 IC dont have any output in LO and HO pins? My switching freq is 100KHz. This is the ir2113 schem:

I am using a IR2101 gate driver circuitry to switch the high side IGBT ON (I do not want it to be periodic). Hence I found out that since I am not frequently switching the IGBT, the bootstrap circuitry doesnt not work since the capacitor cannot charge up. I therefore found out 2 ways I can...

Hello, I am working on a 7-level power micro-inverter which composed mainly by power MOSFETs. These logic-level MOSFETs (IRLZ24NS) are driven by separate photovoltaic gate drivers with integrated fast turn-off (Broadcom ACPL-K30T). The problem comes when I try to simulate the circuit and compare...

I'm trying to understand how to drive the MOSFET's in the two-switch forward, I designed a 200W DC-DC converter, 50V input 100V output but I was looking for using an MCU and IC in this case I have an IR2110 high side low side for the gate drive, I don't know if it is possible to use it? and if...

Hello, I have designed a TL494 half bridge power supply which simulates fine in LTspice but has some problems when soldered on a board and I can not figure out how to fix them. Schematic pictures are attached. 1. If I connect GDT1 and GDT2 as seen in the schematic pictures, the output...

Hello, I'm designing a resistive load bank. Currently, I am designing the switch that will be controlled by a control signal via Arduino uno rev 3. The bidirectional switch is composed of two back-to-back igbts connected by their emitters with anti-parallel diodes. (Due to cost, there are two...

Referring in particular to pages 23, 27 and 33 of the attached datasheet for isolated gate driver UCC 5390 S [from TI] to be used to power the high side gates of IGBTs in an H-Bridge module, is it correct that the 5V input to the VCC1 pin may be provided by an MCU [PVM], as suggested by the...