Laser-diode-pulsers


Posted on Aug 9, 2012

The laser diode·pulser is a simple drive circuit capable of driving the laser diode with 10-A, 20-ns pulses. For a 0.1 % duty cycle, the repetition rate will be 50 kHz. A complementary emitter follower is used as a driver. Switching speed is determined by the h of the bipolar transistors used and the impedance of the drive source. A faster drive circuit is shown. It can suwly higher peak gate current to switch the IRF520 very quickly.


Laser-diode-pulsers
Click here to download the full size of the above Circuit.

This circuit uses a MOSPOWER totem-pole stage to drive the high power switch. The upper MOSFET is driven by a bootstrap circuit. Typical switching times for this circuit are about 10 ns for both tum-on and tum-off.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

High-voltage-inverter
DIY USB password generator
ir remote controlled switchboard rc5
50w audio amplifier using ic tda1562
beztlacitkova klavesnice
250mw 16 db vhf amplifier
Audio VU Meter
White Led driver circuit diagram using LM3404
HR Diemen
Structured PIC BASIC



Top