bigtalltim wrote:Also, this uses relays so there is practically no power loss to heat unlike MOSFET H-bridge alternatives.
4 diodes (from a lucky bag... about £0.10 each)
2 NPN Transistors (from a lucky bag... about £0.15 each)
Frakk wrote:I would like to see how hot these "lucky bag" components get...
Frakk wrote:Here is a diagram if you want to try it with MOSFETS:
Make sure to use LOGIC LEVEL ones if the PWM voltage from the K8055 is ~5V.
Current rating should suit the motors, about 15A continuous should be good for those wipers. Don't forget heetsinks.
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