Automatic Water Pump Controller without IC
There is an automatic water pump controller circuit that controls the water pump motor. The motor gets automatically switched on when water in the overhead tank (OHT) falls below the lower limit. the pump shuts off when the tank is full. It is a simple water pump control system to ensure uninterrupted water flow in homes and offices. The hole water tank status can be monitored by the controller's LED indication system. This way you will be informed when the red LED is on the pump, and when the pump is off, the LED is off
The circuit diagram in pump ON state
The circuit diagram in pump off state
Circuit Components
- Transistor BC547- 03pcs [See Buy Click Amazon]
- Transistor BC557- 01pc [See Buy Click Amazon]
- 5volt Relay [See Buy Click Amazon]
- 1N4007 Diode- 02pcs [See Buy Click Amazon]
- 1uf,50volt Capacitor - 01pc [See Buy Click Amazon]
- 1k,4.7K,10K,100K,300K Resistor [See Buy Click Amazon]
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Components used to pump control:
- BC547 Transistor
- BC557 Transistor
- 5volt Relay
- 1uf,50volt Capacitor
- 1N4007 Diode
BC547 Transistor(NPN)
BC547 is an NPN transistor so when the base pin is grounded the collector and emitter will be open (reverse biased) and when a signal is applied to the base pin it will be closed (forward biased).
BC557 is a PNP transistor hence the collector and emitter will be closed (Forward biased) when the base pin is held at ground and will be opened (Reverse biased) when a signal is provided to the base pin.
The capacitor is a Two-Terminal passive component having the Property of Capacitance. This Property Electrifies (charging with electricity) Capacitors with input Voltage. Capacitors Condense Electricity, Hence it is also known as a Condenser. It consists of two Electrical Conductors that are Separated by Distance. The Capacitor Stores Charge and can act like a Battery. It is necessary for filter Circuits to Minimize voltage spikes, and Smoothing changes in voltage.
Diodes are used to protect circuits by limiting the voltage and also transform AC into DC. Semiconductors like silicon and germanium are used to make the most of the diodes.
1N4007 is a rectifier diode, designed specifically for circuits that need to convert alternating current to direct current. It can pass currents of up to 1A and have a peak inverse voltage (PIV) rating of 1,000 V.
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Frequently Asked Questions:
What material is used in automatic pump controller projects?
Automatic Pump Controller Project Components Using Transistor BC547, Transistor BC557, Relay, Capacitor, Diode, Resistor, Wire etc.
Depending on what the pump turns on and off?
There is an automatic water pump controller circuit that controls the water pump motor.
How does the automatic water pump work?
The motor gets automatically switched on when water in the overhead tank (OHT) falls below the lower limit.
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