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DC Changeover System with Battery Protection Unit

DC Changeover System with Battery Protection Unit

+BR1COMIC1780613OUT2IN23746-+IC223746-+IC3LOADPOWER ONX1 = 230V, AC PRIMARYTO 9V AC, 1ASECONDARY TRANSFORMERD1R2470ΩLED1R12.2KT1BC5486VBATT.C11000μ25VBR11AX1230V AC50HZR4220ΩR3470ΩZD13.3VZENERR5220ΩIC1-IC2 = CA3140T2BC548R62.2KD2LED2R7470ΩRL2R8220ΩR9470ΩZD23.3VZENERR10470ΩLED3R12470ΩD3RL3T3BC558R112.2KRL1N/ON/CRL1, RL2 = 6V, 100Ω1C/O RELAYRL3 = 5V, 100Ω1C/O RELAYD1-D3 = 1N4007OVERDISCHARGEDN/CN/ON/CN/OOVERCHARGEDDC Changeover System with Battery Protection Unit
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publish time: 2020-10-23
Circuit Everyday

Common emergency lights on the market have battery overcharge protection, but no discharge protection.This is a circuit that protects the battery from overcharging and overdischarging.When the utility is available, the load is supplied by the voltage regulator;When the mains fails, the load will be automatically converted to direct current.When power is restored, the load is fed through the regulator again and the battery begins to charge.

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