The Thyristor Book--with 49 Projects

1/4 watt resistor ac power anode applications basic capacitor C1 cathode chapter circuit breaker circuit of Fig circuit shown component values crowbar circuit CSCR cuit current flow cycle dc Power Controller diac diagram digital control electrolytic capacitor electronic crowbar emitter filter flash unit four-layer diode Fuse to suit gate pulse gate signal gate terminal gate trigger heatsink hobbyists holding current hysteresis illustrated in Fig input power LASCR load device manufacturer's maximum Megohm neon lamp ohm 1/2 watt operation optoisolator oscillator circuit p-type semiconductor photoresistor PIV rating pn junction PNP transistor polarity positive half-cycle potentiometer project is given quadrac relay resistor R2 respect to MT1 reverse-biased schematic symbol SCR Q1 semiconductor shown in Fig Silicon similar simple Socket suit load supply voltage switch S1 thyristor thyristor circuits timer transistor triac triac Q1 trigger pulse trigger voltage turn typical parts list uF capacitor volts waveform