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Battery charging device, method and controller

A battery charging and controller technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve problems such as battery chargers not being cost-effective

Pending Publication Date: 2021-12-03
NUVOLTA TECH (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, battery chargers with multiple power converters are not cost-effective

Method used

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  • Battery charging device, method and controller
  • Battery charging device, method and controller
  • Battery charging device, method and controller

Examples

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Embodiment Construction

[0022] The implementation and application of preferred embodiments of the present disclosure will be discussed in detail below. It should be appreciated, however, that the present disclosure provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of some specific ways to make and apply the disclosure, and do not limit the scope of the disclosure.

[0023] This disclosure will describe some preferred embodiments in a specific context, namely battery charging apparatus and methods. However, the present disclosure is also applicable to various other power systems. Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0024] figure 1 A schematic diagram of a battery charging device according to an embodiment of the disclosure is shown. A battery charging device includes a switched capacitor p...

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Abstract

The invention discloses a battery charging device and method and a controller. The battery charging device includes a first switch, a second switch, a third switch, and a fourth switch connected in series between an input voltage bus and ground, wherein a common node of the second switch and the third switch is configured to be coupled to a battery; the device also comprises a flying capacitor which is connected between a common node of the first switch and the second switch and a common node of the third switch and the fourth switch; and a controller which is configured to generate a gate driving signal for configuring at least one of the first switch and the second switch as a linear regulator during a battery charging process.

Description

technical field [0001] The present invention relates to a battery charging device, method and controller, and in some specific embodiments, relates to a battery charging device, method and controller based on switched capacitor power converters. Background technique [0002] With the continuous advancement of technology, various electronic devices (such as mobile phones, tablet computers, digital cameras, MP3 players and / or other similar electronic devices) have become popular. Each portable device may employ multiple rechargeable battery cells. These rechargeable battery cells can be connected in series or in parallel to form a rechargeable battery pack for storing electrical energy. [0003] A battery charger is used to restore the energy of the battery. The battery charger is controlled to supply voltage (eg, constant voltage charging mode) and current (eg, constant current charging mode) to the battery in order to recover energy from the battery. [0004] There are va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/007182H02J7/00714H01M10/44Y02E60/10H02M3/07H02J7/007184H02M1/0045H02M1/0054
Inventor 刘成詹福春吴苗松
Owner NUVOLTA TECH (SHANGHAI) CO LTD
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