H-Bridge for Small Motors...

I want to build (a pair of) H-bridges to drive my motors, described thusly (from Tamiya kit # 70097 - two FA-130 motors):

* RPM: 6990-9100 (6990 Max. Efficiency)
* Voltage: 1.5-3V (1.5V Recommended)
* Amperage: .66A

Assuming I'm going to go for the recommended 1.5V, geared down lots and with small wheels (don't want the little beasty to move faster than I can run!), I can get TIP31B/TIP32B - I assume that these will be somewhat overkill, but will work correctly? Considering they're rated for 3A, I shouldn't be needing heatsinks?

Also, will the 4004 diodes I have sitting in my drawer do the job?

I'll be running a separate power supply/battery for the motors. Is there anything else I should be doing? (apart from getting an electronics degree B-)= )

Thanks,
Andrew Merton
.

Relevant Pages

  • Re: H-Bridge for Small Motors...
    ... RPM: 6990-9100 (6990 Max. Efficiency) ... Voltage: 1.5-3V ... Amperage: .66A ...
    (sci.electronics.basics)
  • Re: H-Bridge for Small Motors...
    ... RPM: 6990-9100 (6990 Max. Efficiency) ... Voltage: 1.5-3V ... Amperage: .66A ...
    (sci.electronics.basics)
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