Power supply method and charging method of super capacitor

A technology of super capacitor and power supply method, which is applied in the direction of charge balance circuit, battery circuit device, arrangement of multiple synchronous batteries, etc., can solve the problems of large energy consumption, large circuit loss, long charging time, etc. cost, prolong service life, and increase the effect of output voltage

Pending Publication Date: 2021-07-09
SHANGHAI IMILAB TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the scheme of this application is that the existing scheme of using a supercapacitor as the backup power supply of the smart door takes a long time to charge, consumes a lot of energy on the resistance, and the charging efficiency is low; in addition, the loss of the circuit is large, and the loss of the backup power supply is high, resulting in The standby time and the number of available door openings are greatly reduced

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  • Power supply method and charging method of super capacitor
  • Power supply method and charging method of super capacitor
  • Power supply method and charging method of super capacitor

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0039] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the application and simplify the description, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and op...

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Abstract

The invention provides a power supply method and a charging method of a super capacitor. The power supply method comprises the following steps: reducing a constant power supply input voltage to obtain a super capacitor charging matching voltage; selecting a higher voltage in an emergency charging voltage and the charging matching voltage of the super capacitor as a charging power supply voltage of the super capacitor; adopting a super capacitor charging chip to charge the super capacitor, and controlling the charging current of the super capacitor charging chip for charging the super capacitor through the rapid charging control voltage or the emergency charging voltage; boosting the output voltage after the super capacitor is charged so as to obtain a MCU power supply matching voltage; and selecting the higher voltage in the super capacitor charging matching voltage and the MCU power supply matching voltage to be reduced so that the MCU power supply voltage can be obtained. According to the scheme, the problems of long charging time, high energy consumption, low charging efficiency, high standby power source losses and the like of the existing standby power source using a super capacitor as an intelligent door are solved.

Description

technical field [0001] The present application relates to the field of power supply control for smart doors, in particular to a power supply method and a supercapacitor charging method. Background technique [0002] At present, most smart doors on the market use lithium batteries as the backup power supply of the door power supply system, but lithium batteries are prone to leakage, fire and other major safety issues, which have been criticized by the industry; in addition, the normal service life of lithium batteries is 3 to 5 years, and The door needs to be used for a long time. The life does not match, and the battery needs to be replaced frequently, and it is difficult to buy matching batteries on the market. Finally, because lithium batteries are limited by the number of charges and discharges, at present, most smart doors need to pull out the battery for charging and then install it. On the door, it is extremely inconvenient to use. [0003] Based on this, a small numb...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/34H02J9/04
CPCH02J7/0014H02J7/007H02J7/345H02J9/04H02J2207/50Y04S20/20Y02B70/30
Inventor 崔伟沈皓
Owner SHANGHAI IMILAB TECHNOLOGY CO LTD
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