Hello, I am planning on doing a electric car conversion, and want to do most of the circuitry myself to save money (don't have the $1000 or more for the motor controllers, saving that for batteries). I have found several schematics that look useful, but I do not know if they fit my criteria. I have already bought a motor, it originally came off of a forklift and was rebuilt by the seller. The specifications of the motor are: DC, 36 volt, individual stator and armature windings, current draw of around 600- 800 amps.
I know this is a little higher current, lower voltage motor than most EVs are using, But I would like to try it anyway.
Some of the schematics I am looking at: **broken link removed** The Using MOSFETS Website: H-bridge using P and N channel FETs
I am planning on using two separate ESCs, one smaller H Bridge one for the stator windings (100 amps or so, and H Bridge ESCs are reversible, so I reverse the stator field to go backwards) and a larger non-H Bridge controller for the armature (700 amps or so).
I figured Pulse Width Modulation would be the way to go, since I see a lot of other circuits using it, but if I am wrong, please correct me.
If anyone can give me some good schematics for the armature circuit and some part numbers, your help would be greatly appreciated!
I know this is a little higher current, lower voltage motor than most EVs are using, But I would like to try it anyway.
Some of the schematics I am looking at: **broken link removed** The Using MOSFETS Website: H-bridge using P and N channel FETs
I am planning on using two separate ESCs, one smaller H Bridge one for the stator windings (100 amps or so, and H Bridge ESCs are reversible, so I reverse the stator field to go backwards) and a larger non-H Bridge controller for the armature (700 amps or so).
I figured Pulse Width Modulation would be the way to go, since I see a lot of other circuits using it, but if I am wrong, please correct me.
If anyone can give me some good schematics for the armature circuit and some part numbers, your help would be greatly appreciated!
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