Constant-current constant-voltage pulse charger that can set charging voltage and charging current arbitrarily

Abstract

The invention discloses a constant-current constant-voltage pulse charger capable of randomly setting charging voltages and charging currents. The pulse charger comprises a main power supply circuit (1), a standard voltage source circuit (2), a control power supply circuit (3), a charging voltage setting circuit (4), a voltage comparison circuit (5), a constant-current charging control circuit (6), a charging current detection circuit (7), a charging current control circuit (8), a triggering synchronous control circuit (9), a charging trigger circuit (10) and a charging circuit (11). The pulse charger works in an unattended mode, has a good protective effect on storage batteries and can prolong service life of storage batteries. The pulse charger has the advantages of low manufacturing cost, good charging effect and long service life. The constant charging voltage and constant charging current of the pulse charger are randomly set, so as to achieve non-polar pulse charging effects, prevent over-charging of storage batteries, and ensure that storage batteries are full. The pulse charger works without needing to be monitored, and practices prove that the performances of the pulse charger are sable and reliable.

Description

technical field [0001] The invention relates to a charger, in particular to a constant current and constant voltage pulse charger. Background technique [0002] When charging lead-acid batteries with common chargers currently available on the market, personnel need to be supervised. If the care is not done properly, the chargers will burn out, animal batteries will be undercharged or overcharged, etc., which will reduce the storage capacity of the batteries and even be scrapped. Although there are self-control chargers on the market, its self-control effect is not ideal, and the situation of charging and scrapping batteries often occurs, and its service life is also relatively short. Although there are also constant-current and constant-voltage chargers on the market, they are mainly used in large-scale charging units and are controlled by microcomputers. The cost is relatively high, and they are not suitable for ordinary users. [0003] Most of the chargers sold in the mar...

AI Technical Summary

Problems solved by technology

Ordinary chargers are charged with full-wave or half-wave rectified pulsating current, or charged after rectified by a high-frequency transformer, which is equivalent to DC charging. Charging with such a current is not easy to activate the active material on the battery plate, and it will also cause The storage capacity of batteries continues to decline

There is also a charger that uses a thyristor as a charging element, which belongs to pulse charging. Pulse charging is easy to activate active substances, but since constant current and constant voltage charging cannot be performed, someone must be on duty, otherwise it will cause overcharging or insufficient charging. When the charging current is too large, It is also easy to burn the charger or damage the battery

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