2018-09-25, 01:44 PM
(This post was last modified: 2018-09-25, 01:45 PM by It Paradyske.)
Hi Quetzal,
Yes indeed, I used a simple H-bridge, with P-channel MOSFets for the upper, and N-Channel MOSFets for the lower part.
This has the disadvantage of a somewhat higher dissipation, than a solution with only N-Channels, but for low ( 2-5 A) currents it is a relative good solution.
The gate control is also very simple with a NPN transistor to pull down the gate of the P-channel, and a NPN and PNP transistor to level shift and pull up the gate of the N-Channel. You need quit small (680-820 ohm) pull up/pull down transistors to switch off the gates of the MOSFets fast enough.
I'm currently working on a new driver with two IR2113 IC's and 4 N-channel FET's, for a better and faster H-Bridge.
Regards
Hans
Yes indeed, I used a simple H-bridge, with P-channel MOSFets for the upper, and N-Channel MOSFets for the lower part.
This has the disadvantage of a somewhat higher dissipation, than a solution with only N-Channels, but for low ( 2-5 A) currents it is a relative good solution.
The gate control is also very simple with a NPN transistor to pull down the gate of the P-channel, and a NPN and PNP transistor to level shift and pull up the gate of the N-Channel. You need quit small (680-820 ohm) pull up/pull down transistors to switch off the gates of the MOSFets fast enough.
I'm currently working on a new driver with two IR2113 IC's and 4 N-channel FET's, for a better and faster H-Bridge.
Regards
Hans