284
Fig. 3.98:
Circuit 98 – Constant current power supply for LEDs
Fig. 3.99:
Circuit 99 – Constant current power supply for LEDs
Fig. 3.100:
Circuit 100:
Electronic level
control
Circuits 98 and 99: The flat output characteristics of the emitter-to-ground circuit ensure that diode current
will not depend on the type of an LED.
Circuit 100: The functioning principle is described on page 259.
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...
