Does anyone have a suggestion for a PWM I could use for the following application. I want to use a Peltier thermoelectric module (TM) to power a mini DC water pump. The specifications for the TM power supply and water pump are posted below. The heat source for the TC can fluctuate resulting in a change in output for the TC, which is why I've posted both the maximum range outputs and the normal operating range for the outputs.
Let me know if you have any suggestions for a PWM that could work in this application, or if you need additional information.
Cheers,
Ken
| Specification | ||||
| Peltier Power Supply | DC Mini-Water Pump | |||
| Maximum Range | Normal Operating Range | Maximum Range | Preferred Operating Range | |
| Open Circuit Output Voltage | 2-10 | 6-8 | ||
| Matched Load Output Voltage | 1-5 | 3.5-4.5 | 5-12 | |
| Matched Load Power (W) | 1-8 | 5-6 | 1-5 | 4-5 |
| Matched Load Resistance (ohms) | 2.6-3.2 | 3.0-3.2 | ||
| Matched Load Current (A) | 0.4-1.6 | 1.0-1.3 | 0.1-0.4 | 0.3-0.4 |