Ac Wiring Locator Circuit


Posted on Jan 10, 2013

The tester consists of a rectifier circuit and a multivibrator circuit. The ac voltage is half-wave rectified by diode D1 and stored in capacitor CI. Resistor Rl is used to limit the current through D1 to a safe value. The voltage stored across CI supplies ICi operating power. The IC, the versatile 555 timer, is configured to operate as a multivibration whose operating frequency is determined by C2, R2, and R3. The output of ICI, on pin 3, is coupled to a piezoelectric speaker (SPK), which gives an indication of the presence of ac.


Ac Wiring Locator Circuit
Click here to download the full size of the above Circuit.

An LED (LI) also lights when ac is present.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Uhf Tv-Line Amplifier
Video Master Circuit
Laser Listening Device
Battery charger or Power Supply 14 volt 4 ampere
Switching Supply In Telephone Ring Generator
Design on the basis of the mechanically controlled digital frequency meter of one piece
control circuit for nokia tv tuner 5827
Decibels Meter Circuit Using LM324
High gain microphone preamplifier electronic project
LCD series microprocessor circuit diagram of speech synthesis
High-performance automatic water level controller circuit
1.25 ~ 37V LM317 adjustable power supply configuration
Digital pulse width measurement circuit diagram CD4518 and CD4069 the



Top