Uninterruptible DC power supply battery activation control circuit and design method thereof

Abstract

The invention discloses an uninterruptible DC power supply battery activation control circuit. An uninterruptible DC power supply comprises a battery management circuit, a PWM control driving circuit, a DC-DC converter and a storage battery. The battery activation control circuit comprises an activation operation circuit, an activation signal detection circuit and an activation signal isolation circuit which are connected in turn, and a reference voltage circuit which is used for supplying reference voltage to the activation signal detection circuit, the activation signal isolation circuit and the battery management circuit. The compensation end of the PWM control driving circuit is connected with the output end of the activation signal isolation circuit. The comparison voltage input end of the battery management circuit is connected with the output end of the activation signal detection circuit. The invention also provides a design method of the uninterruptible DC power supply battery activation control circuit. The uninterruptible DC power supply battery activation control circuit is low in realization cost and convenient to use and operate so that the service life of the storage battery can be effectively prolonged, use efficiency of the storage battery is enhanced, practicality is high and popularization and use are convenient.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a battery activation control circuit of an uninterrupted DC power supply and a design method thereof. Background technique [0002] With the rapid development of power transmission and communication technologies, in order to prevent equipment damage, data loss, and work interruption caused by power outages, voltage fluctuations, and clutter interference, the application of uninterruptible DC power supplies is becoming increasingly important. As the energy storage device of the uninterrupted DC power supply, the battery is one of the key equipment to ensure the normal operation of the system. Its function is to provide electric energy to the load when the mains power is lost or the quality of the mains power exceeds the allowable range of the electrical equipment. However, batteries are expensive consumables. Therefore, how to reasonably use and manage the batt...

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Problems solved by technology

The design principle is to add a negative pulse during the charging process, which has an effect on reducing the temperature rise and also has a certain effect on preventing the vulcanization of the plate, but it is not obvious. Although it is widely used at present, it is an elimination method

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