268
Fig. 3.58:
Circuit
58: DC-DC con-
verter 9V to 18V
with coil-moving
instrument
Fig. 3.59:
Circuit 59:
DC-DC converter 9V
to 35V with coil-
moving instrument
Circuit 58 – 62: T1 and T2 are wired to work as a pulse generator. Thus, L1 connects and disconnects to the
battery via T2 again and again. Each time L1 is magnetically charged. The induced voltage pulse is carried to
electrolytic capacitor C2 via D1. C2 thus keeps charging up. At the same time C2 discharges due to the load
at the output. Thus the balance of charge and discharge defines the resulting output voltage.
Summary of Contents for ELECTRONICS EXPERIMENTS BOX
Page 4: ......
Page 265: ...267 Fig 3 56 Cir cuit 56 Audio limiter Fig 3 57 Circuit 57 Amplifier for a storm detector...
Page 269: ...271 Fig 3 64 Circuit 64 Stabilizer for 1 9 V Fig 3 65 Circuit 65 Stabilizer for 2 5 V...
Page 275: ...277 Fig 3 80 Circuit 80 Quiztimer 30 seconds Fig 3 81 Circuit 81 Handy diode tester...
Page 315: ...317 Fig 3 179 Circuit 179 HF generator 150 kHz Fig 3 180 Circuit 180 HF generator 420 kHz...
