Triggering-scr-series


Posted on Jun 29, 2012

Snubber circuit R2C2, as shown, might be necessary since Rl and Cl are tailored for optimized triggering and not for dV!dt protection. Fiber-optic pairs can be used with discrete SCRs to switch thousands of volts. A photon coupler with a transistor output will limit the trigger-pulse amplitude and rise time because of CTR and saturation effects.


Triggering-scr-series
Click here to download the full size of the above Circuit.

Using the HllCl, the rise time of the input pulse to the photon coupler is not critical, and its amplitude is limited only by lite HllCl turn-on sensitivity. The load can also be connected to the cathode as illustrated in Fig. 67-3B.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

simple intercom circuit with
AT89C51-12PI AT89C51 80C31 Microcontroller With 4K Bytes Flash Use AT89S51
STI5189 Low-cost QPSK Demodulator And MPEG2 Decoder For Set-top Box Applications
PWM sound Tutorial
digital clock pic microcontroller ds1307
TV Remote Jammer!



Top