Electronic Circuit Analysis

268 Electronic Circuit Analysis
8.6.3 Voltage Tripier
The circuit is as shown in Fig. 8.20. Working is similar to the previous circuit.
...---~_ 1-:--+ --r----r----::::i- h----r+ -j
c, C, I
8.6.4 Voltage Quadrupler
D, D,
c, 1
L-____________ ~ __ ~- ~+--~------~---
Fig. 8.20 Voltage tripler circuit
The circuit is shown in Fig. 8.21. Is there any limit to the number of sections that can be added to get
large voltage? Theoretically it is possible. But the ripple voltage will get worse as additional sections
are added. (A diode is being put across or in series. So ripple will increase). So these circuits are used
only where very high voltage doubling is to be done. The input voltage itself will be higher.
- I
C,
- +
c,
I
0, 0,
0,
0,
Vo
8.6.5 Peak To Peak Detector
The circuit is as shown in Fig. 8.22.
Fig. 8.21 Voltage quadrupler circuit
V
t
c,
D\
C 2
He
1
Vo
--+ t
j
Fig. 8.22 Peak to peak detector