nsguiamano
Junior Member level 1
I'm using an IRS2117 MOSFET Driver connected in the circuit below
I'm using a DC power supply to provide the 15V Vcc, and 1uF capacitors for both circuits.
The problem is, attaching an input signal from a function generator (square wave, 0-5V, 1kHz), the U8 output is always at 9.8V, and U9 output at 1V.
I've tried the following to solve the problem but no luck:
1. Replace the driver itself
2. Use polarized and non-polarized caps
3. Probe negative at both ground and Vs
4. Removed all other components surrounding the circuit
I've used IRS21867 (high side-low side version of this IC) before and just followed the datasheet schematic like what I did now and didn't have a problem making that IC work.
Any though on what else I should be doing?
I'm using a DC power supply to provide the 15V Vcc, and 1uF capacitors for both circuits.
The problem is, attaching an input signal from a function generator (square wave, 0-5V, 1kHz), the U8 output is always at 9.8V, and U9 output at 1V.
I've tried the following to solve the problem but no luck:
1. Replace the driver itself
2. Use polarized and non-polarized caps
3. Probe negative at both ground and Vs
4. Removed all other components surrounding the circuit
I've used IRS21867 (high side-low side version of this IC) before and just followed the datasheet schematic like what I did now and didn't have a problem making that IC work.
Any though on what else I should be doing?