Showing posts with label electronic. Show all posts
Showing posts with label electronic. Show all posts
Friday, April 12, 2013
Electronic Fuse Employs A Relay
The hobby circuit below uses an unusual method to generate about 12,000 volts with about 5uA of current. Two SCRs form two pulse generator circuits. The two SCRs discharge a 0.047uF a 400v capacitor through a xenon lamp trigger coil at 120 times a second.
The high voltage pulses produced at the secondary of the trigger coil are rectified using two 6KV damper diodes. The voltage doubler circuit at the secondary of the trigger coil charges up two high voltage disc capacitors up to about 12KV. Although this circuit can’t produce a lot of current be very careful with it. A 12KV spark can jump about 0.75 of an inch so the electronic circuit needs to be carefully wired with lots of space between components.
Source by : Streampowers
Tuesday, April 2, 2013
Electronic Components As Light Sensor
Electronic Components As Light Sensor
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Electronic components are included in the category of light sensors is LDR, Photo Transistor, Photo Diode, Infrared Receiver. The function of the electronic component is to detect the intensity of light received by the component. The light sensor is often used in electronic equipment such as on television, light a light switch, light intensity measuring instrument.
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| Electronic Components As Light Sensor |
Friday, March 22, 2013
Electronic siren circuit
This is an electronic siren.you can use this one to your security systems or burglar alarms.so be creative then you can build up a fantastic creation.
* A 12 V battery or a a well regulated 12V DC power supply can be used to power the circuit.
* Assemble the circuit on a good quality PCB or common board.
* The switch S1 can be used to activate the alarm.
* The switch S2 can be used as a power switch.
* You can experiment on the tone of alarm by using different values for C2 and R8.
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