Constant-current type mixed pulse charging device

Abstract

A constant-current type mixed pulse charging device belongs to the field of electronic technology and is composed of a trickle resistor, a charging unit, an ending indicating unit, a pulse unit, an ending selecting unit, a voltage limiting ending unit, a timing ending unit and a load unit. Two triodes in the charging unit are in a constant-current form and are controlled by a pulse unit, thereby forming pulse type constant-current charging. On the condition that one triode in the charging unit is damaged, the other triode is used for ensuring service life of a charger. The constant-current type mixed pulse charging device has two ending manners, namely ending by the voltage limiting ending unit after a battery is charged to full and ending by the timing ending unit when time is up. The ending manner is selected by the ending selecting unit, thereby realizing high flexibility and high convenience. After charging is ended, the charging unit is off and the trickle resistor supplies required maintained trickle current to the battery. The constant-current type mixed pulse charging device has advantages of greatly prolonging service life of the charger and reducing rejection rate of the charger.

Description

technical field [0001] It belongs to the field of electronic technology. Background technique [0002] With the enrichment of modern life, there are more and more types of electrical appliances using batteries, such as digital machines, mobile phones, etc., for which there are also many types of chargers, but there are still many types of low-carbon and environmentally friendly charging circuits in these types. exist. [0003] One of its meanings is that in current products, the charging director, which is the circuit transistor that connects and shuts off the charging, is easily damaged. Once damaged, the charger becomes garbage. According to statistics, this failure has become the main failure point of the charger. It is a great waste to become garbage just because of this damage. cost, so people are often throwing away). [0004] The second meaning is that during the charging process, the battery is not charged scientifically, which affects the capacity and life of the...

AI Technical Summary

Problems solved by technology

[0008] The reason for the lack of current products is that there is no constant current and pulse charging circuit, and this circuit has a relatively simple circuit, and can flexibly adjust the relationship between charging and stopping, and the second is that it does not have a limited voltage. A circuit that combines the end of charging (this method is suitable for activated batteries) and the end of timing (this method is suitable for charging non-activated batteries and a large class of batteries such as acid)

The third is that there is no way to use active components for conversion to solve the problem that the charging tube is fragile

If the switch tube is in a pulsed state, it is more likely to become damaged and increase the overall scrapping of the charger

Images