Free Simple Circuit Diagram
Introduction Humidity is the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature. To build a humidity sensor can be difficult because of their wide dynamic range and sensor’s drive requirement. But we can build the humidity sensor with reasonable accuracy within the chosen range […]
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This is a simple high voltage inverter circuit. It is uses NPN transistor type 2N3055. This circuit used to invert low voltage to high voltage. Besides that, this circuit uses flyback transformer that can obtained from B/W or color TV or computer monitor. R1 (110 Ohm/5W) and R2 (27 Ohm/5W) are used to limit the current so as to reduce […]
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This is a power supply circuit that produce voltage 12 to 24 V. It is very simple, doesn’t need regulator just bridge rectifier, filter capacitor and transformer. A bridge rectifier makes use of four diodes in a bridge arrangement to achieve full-wave rectification. This circuit will give you 15 VDC at up to 3A. To prevent damage to circuit or […]
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This circuit is used to exterminate bugs. This circuit needs high voltage but low current to do that. To attract the flying bugs this circuit use lamp. But be careful, these device exterminate all bugs, although that are useful and friendly bugs. This circuit uses the principle of voltage quadruple which supplies a direct current output voltage which is four […]
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