2.0 (B) POWER SUPPLY: HALF-WAVE WITH A FILTER Objectives: To identify function of diode as half wave power supply To observe a signal shape generate by half wave power supply To measure voltage over power supply with filter circuit. Materials : Transformer :
230V:12V,0V,12V
Oscilloscope Multimeter Diode : IN4003/IN4001 Resistor :
10K
ohm Capacitor
:1000\mu F50V
(Electrolytic) Proce Connect circuit by referring to Figure 1. Use multimeter to measure
AC
voltage at point
L
and
M
. Fill in the value in Table 1. Use multimeter to measure DC voltage at point
D
and
M
. Fill in the value in Table 1. Use oscilloscope to measure the output signal on point LM and DM and note peak-topeak voltage. Sketch output signal on Table 1. Observe the changes of signal shape. Clearly describe operation of half-wave power supply.