A 4.7 zener diode is connected to the base resistor. The left side of the resistor sits at about 12V. The right side of the biasing resistor is connected to the Zener and npn transistor. The Zener bias is 5mA. The base current needed is 80uA. What is the appropriate resistor for this circuit? (In kohms) I

A Full-wave bridge rectifier Circuit contains 4 Germanium diodes Cuse the Constant voltage drop model with VD = 0.30) driving ac a Load resistance of 10 kur. An Source with a Peak value of 4ou at bottz Vortage Source with a applied to the Circuit. a DIS 2 Determine the de value of the output wave form Determine the value of the Capacitor In uf needed to limit the output ripple vortage to 0.5 V if the Peak output voltage is equal to Upic -2VD

explain how a pm signal is produced using a varactor diode in a phase modulator circuit

1. A six-pulse uncontrolled recti load. The inductance is very 1 (a) Determine average load o (b) Determine the maximum (c) Determine the maximum (d) Determine average loac (e) Carefully sketch the wav diode conduction pattern.