| ??? 02/05/05 15:05 Read: times |
#86622 - Question about controlling power supply? |
I have a Thermal Printer that has a Head Drive Voltage pin (TH) that need at most 2.5A current at running the Head, and i would like to use a 8051 to control the enable and disable the Printer by giving a Logic high and low.
Logic high from I/O pin of 8051 to make the voltage supply to supply the voltage and current to the device, otherwise close it, and i would like to use a PNP power transistor (TIP107) for it, is it okey? Anything need to think before wiring it? Does anybody have tried to interfacing any MCU to Thermal Printer? Any suggestion? Any sample circuit? MCU: AT89C51: Port 0: IOL = 3.2A@0.45V Thermal Printer: need 2.5A current to driving the Head@ 5.0V, 64dots on (Model: Samsung SMP610) Thanks |
| Topic | Author | Date |
| Question about controlling power supply? | 01/01/70 00:00 | |
| Pardon ? | 01/01/70 00:00 | |
| should be 3.2mA@0.45V... | 01/01/70 00:00 | |
| Driving a Thermal Print Head | 01/01/70 00:00 | |
| Really ? | 01/01/70 00:00 | |
| Dymo micros | 01/01/70 00:00 | |
| which FETs? | 01/01/70 00:00 | |
| FET suggestion | 01/01/70 00:00 | |
| Caution suggested! | 01/01/70 00:00 | |
| Good Advice | 01/01/70 00:00 | |
| Some question about themral printer | 01/01/70 00:00 | |
| To Yueng Chun Chung and Ian Bell | 01/01/70 00:00 | |
Use of D0 | 01/01/70 00:00 |