Standby power supply unit. Circuit technology.Frequent power outages, especially in rural areas, have become commonplace for inhabitants of country residences. Power outages cause discomfort of coexistence of households in total darkness.Moreover, different sensors and security devices, feeding on low-voltage sources, become de-energized. Therefore, a simple solution to this situation in your household is to have a simple device that will switch a standby storage battery during power outages. When electric power supply is resumed, the device will restore the power system.Operating principle of the device.If power supply is available, voltage from network enters the rectifier bridge through quenching capacitor S1. Then constant voltage, feeding relay winding R1, is generated by capacitor S2. In this case, the relay contacts are switched to mains supply.During power outages, relay winding is de-energized and relay contacts are switched to the autonomous power supply system, ie to accumulator battery work. In the device it is better to use relay with low operating current. But in any case, for selection of a relay it is also necessary to select capacitance rating value S1.
Saturday, November 24, 2012
Standby power supply unit. Circuit technology.
Standby power supply unit. Circuit technology. Tube. Duration : 1.70 Mins.
Standby power supply unit. Circuit technology.Frequent power outages, especially in rural areas, have become commonplace for inhabitants of country residences. Power outages cause discomfort of coexistence of households in total darkness.Moreover, different sensors and security devices, feeding on low-voltage sources, become de-energized. Therefore, a simple solution to this situation in your household is to have a simple device that will switch a standby storage battery during power outages. When electric power supply is resumed, the device will restore the power system.Operating principle of the device.If power supply is available, voltage from network enters the rectifier bridge through quenching capacitor S1. Then constant voltage, feeding relay winding R1, is generated by capacitor S2. In this case, the relay contacts are switched to mains supply.During power outages, relay winding is de-energized and relay contacts are switched to the autonomous power supply system, ie to accumulator battery work. In the device it is better to use relay with low operating current. But in any case, for selection of a relay it is also necessary to select capacitance rating value S1.
Standby power supply unit. Circuit technology.Frequent power outages, especially in rural areas, have become commonplace for inhabitants of country residences. Power outages cause discomfort of coexistence of households in total darkness.Moreover, different sensors and security devices, feeding on low-voltage sources, become de-energized. Therefore, a simple solution to this situation in your household is to have a simple device that will switch a standby storage battery during power outages. When electric power supply is resumed, the device will restore the power system.Operating principle of the device.If power supply is available, voltage from network enters the rectifier bridge through quenching capacitor S1. Then constant voltage, feeding relay winding R1, is generated by capacitor S2. In this case, the relay contacts are switched to mains supply.During power outages, relay winding is de-energized and relay contacts are switched to the autonomous power supply system, ie to accumulator battery work. In the device it is better to use relay with low operating current. But in any case, for selection of a relay it is also necessary to select capacitance rating value S1.
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