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Synchronized UJT-Triggering (Ramp Triggering)
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written 6.3 years ago by
sndeshpande.pvpp
• 150
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Synchronized UJT triggering circuit is shown in Fig. 1. The diode bridge $D_{1}-D_{4}$ rectifies a.c. to d.c. Resistor $R_{s}$ lowers $E_{\text { dc }}$ to a suitable value for the zener diode and UJT. The zener diode $D_{z}$ is used to clip the rectified-voltage to a fixed voltage $V_{z} .$ …
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