Switched charging device with power conversion function

Abstract

The invention discloses a switched charging device with power conversion function, which comprises a power factor regulating circuit, a rechargeable processor circuit and more than one storage batteries, wherein the power factor regulating circuit is arranged at the power input end and provided with at least a first infinite resonance tank; the rechargeable processor circuit is arranged at the output end of the power factor regulating circuit and electrically connected with the storage batteries; dynamic PFC power factor adjustment resonated with the storage batteries is realized by aid of resonance and damping effects generated by the first infinite resonance tank so as to lead the rechargeable processor circuit capable of resonantly charging the batteries quickly without temperature production in the pattern of output electronic current in frequency adjustment action, and because the charge and discharge paths of the battery are different and the energy consumption problem of the maximum power conversion does not exist, the switched charging device also has the benefits of charging with doubling powers and allowing to charge and discharge simultaneously.

Description

technical field [0001] The invention relates to a power charging device, in particular to an exchange charging device with power conversion. Background technique [0002] Different types of AC or DC continuous power sources want to use batteries to store power, only through the power processing of chargers or charging devices can the matching power be effectively charged to the batteries; various types of power sources generally require Different chargers or devices, these chargers are usually composed of a PFC power factor regulator and a frequency processor; for example, figure 1 It is a charging device used in an AC power source (such as mains) in the prior art. The step-up PFC power factor regulator 12 electrically connected to the rectifier 11 at the input end of the power source is based on the type (resistance) of the battery 13 Resonance is formed to generate dynamic impedance matching, and the frequency processor 14 located at the output end of the step-up PFC powe...

AI Technical Summary

Problems solved by technology

[0003] 1. The first inductance L of the PFC power factor regulator 12 (or 22) 1 , all due to poor resonance with the battery 13 (or 23) to generate back electromotive force, which hinders the normal operation of PFC. During the charging process of the battery 13 (or 23), there will be a momentary power failure or LDO (Low Drop Out) situation where no power can be drawn. occur;

[0004] 2. The second inductance L of the frequency processor 14 (or 24) 2 , sometimes there is an eddy current phenomenon, and the elimination is slow and the temperature is high, resulting in a large current drift (off sat) at the terminal 13 (or 23) of the battery, and unstable charging is prone to occur;

[0005] 3. The first inductance L 1 and the second inductance L 2 , all will cause insufficient power due to the gap between the coil and the iron core, and are prone to saturation (no action or response), affecting the normal charging of the battery 13 (or 23), or at least failing to achieve (power) fast charging

[0006] 4. When the storage battery 13 (or 23) is charging, it is in accordance with image 3 According to the equivalent maximum power transfer theorem shown, the result of charging by current charging method has poor reaction efficiency, less power storage (only half of the maximum value), slow charging speed, high temperature (battery is easily damaged), and due to charging It is the same as the discharge path, so it cannot be charged and discharged at the same time

[0007] As the current industry attaches great importance to the development of new energy, all kinds of power generation devices that obtain electricity through energy conversion often have to store electricity with the help of electricity storage (energy) equipment in order to make the most full or most effective use of energy, and excellent High-performance, high-efficiency and safe chargers or devices will play a very important role in the process of power storage; and some electronic products that require mobile power (rechargeable batteries) have a market that requires fast charging of batteries demand; however, the DC or AC charger or device charges the storage battery, the current loop formed by the charge, the aforementioned multiple missing will always be a technical problem that is difficult to improve or solve in the power charging process, if the storage battery can be charged The power supply is an electron flow (a circuit formed for electrons) opposite to the direction of the charge, so it is bound to solve or improve the various problems faced by the aforementioned conventional DC or AC chargers or devices;

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