Given parameters: Output voltage, Ud = 20 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: U ¿ =2∗U out =2∗20=40V U max U rms = =17.09 V √2 Period = pulse width + delay => 10 ms = 5 ms + 5 ms Table 1. Control curve data. Delay time, Pulse with, Alpha, firing Switch SCR ms ms angle Uout, V Iout, mA Uout, V Iout, mA 0 10 0 28.14 0.52 21.28 0.25 2 8 36 27.8 0.4 25.66 0.37 4 6 72 23.75 0.34 23.31 0.33 5 5 90 20.79 0.29 20.38 0.29 7 3 126 10.99 0.16
, . / . ; ; ; - , . . , . . - : - . KI = Iout / Ii n = 0.01 q CU q t CU It , - . ( ) ( ) : dU I . dt C , 10. .
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