Semiconductor laser controlled current circuit
The utility model discloses a semiconductor laser controlled current circuit, including laser instrument body, switching power supply, sampling resistor, sampling amplification circuit, electric current reference circuit, current protection circuit and voltage ratio than control circuit, the output...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The utility model discloses a semiconductor laser controlled current circuit, including laser instrument body, switching power supply, sampling resistor, sampling amplification circuit, electric current reference circuit, current protection circuit and voltage ratio than control circuit, the output of laser instrument body is provided with the sampling resistor, the output of sampling resistor with the input of sampling amplification circuit is connected, the output of sampling amplification circuit with the voltage ratio is connected than control circuit's first input end, electric current reference circuit's output with the voltage ratio is connected than control circuit's second input, the voltage ratio than control circuit's output with current protection circuit's input is connected,current protection circuit's control output with switching power supply's control input end is connected. The utility model discloses an and carry out the logic level conversion, direct control switching power supply reaches |
|---|