The Robot Power Simple-H is a low-cost robust H-bridge circuit suitable for use driving DC motors and
other DC loads in the ~25A and 24V range or less. A wide range of command sources from switches
to 555 timer circuits to microcontrollers and BasicStamps may be used to control the Simple-H.
Unlike many competing products which advertise similar current ratings, the Simple-H ratings are for a period
measured in minutes or hours not a few seconds or less. One competitor even advertises a 30A controller where the
30A rating is for "a few milliseconds". With a Simple-H you can be sure if you need 20A of current you can
get 20A out of it for as long as you need it.
Features
| Supply Voltage |
5V to 28V (24V max battery rating) |
| Continuous Discharge |
20A (25A with fan) |
| Max Discharge |
>45A |
| Weight |
1.3 oz |
| Power Chips |
2 each BTS7960B |
| On Resistance |
0.016 ohm max at 25C |
| PWM Frequency |
DC to 20kHz |
| Coolong |
Heatsinks |
| Logic Interface |
3-5V, miniumum 3 pins required |
| Current and Temp Limiting |
Built in to power chips |
| Current Sense Outputs |
0.0745V per Amp -- 2.98V at 40A |
| Connectors |
8-pos 0.1" screw terminal, 2-pos fan terminal, 4 each screw terminals for power wires |
| Enclosure |
None |
Schematic 
Manual 
Simple-H 12V Fan Kit