Circuit and method for power supply of electronic device and electronic device

A technology for electronic equipment and power supply circuits, which is applied to battery circuit devices, circuit devices, current collectors, etc., can solve the problems of short battery life of electronic equipment and reduced user experience, and achieve extended battery life, long battery life, and improved user experience. The effect of experience

Active Publication Date: 2014-09-17
QINGDAO GOERTEK
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  • Abstract
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Problems solved by technology

[0003] The present invention provides a power supply circuit for electronic equipment, a power supply method and an electronic equipment, so as to solve the problem of reduced user experience caused by short battery life of electronic equipment

Method used

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  • Circuit and method for power supply of electronic device and electronic device
  • Circuit and method for power supply of electronic device and electronic device
  • Circuit and method for power supply of electronic device and electronic device

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The core idea of ​​the present invention is to use solar energy and / or piezoelectric oscillating energy as an auxiliary energy source to collect microwatt and milliwatt-level energy, convert the collected energy and store it in an auxiliary power source such as a farad capacitor, and use the auxiliary power source to Electronic equipment supplies power to save the power of the main power supply (generally lithium battery), avoid frequent charging of the main power supply (generally lithium battery), and at the same time provide a large peak current for the load. The voltage collected in the auxiliary power supply is monitored through the voltage monitoring circuit, and when the voltage reaches the programmable threshold, the main...

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Abstract

The invention discloses a circuit and method for power supply of an electronic device and the electronic device. The circuit comprises a voltage monitoring circuit, a control circuit, an auxiliary power supply circuit and a main power supply circuit comprising a battery. The auxiliary power supply circuit is used for collecting energy and converting the energy into electric energy and storing the electric energy; the voltage monitoring circuit is used for monitoring voltage of the auxiliary power supply circuit, sending first notification signals to the control circuit when voltage of the auxiliary power supply circuit reaches a first preset value, and sending second notification signals to the control circuit when voltage of the auxiliary power supply circuit is lower than a second preset value, wherein the first preset value is larger than the second preset value; and the control circuit is used for converting a working power supply circuit of the electronic device into the auxiliary power supply circuit when receiving the first notification signals, and switching the working power supply circuit of the electronic device into the main power supply circuit when receiving the second notification signals. According to the technical scheme, endurance working time of the electronic device can be prolonged to the largest extent, and accordingly user experience is improved.

Description

technical field [0001] The invention relates to the field of power supply of electronic equipment, in particular to a power supply circuit of electronic equipment, a power supply method and an electronic equipment. Background technique [0002] At present, smart electronic devices, such as smart bracelets, smart watches, smart glasses, smart buttons, etc., are mostly powered by button batteries or rechargeable lithium batteries. Due to the limited capacity of button batteries, users need to replace them frequently. batteries; and rechargeable lithium batteries are limited by the limited space of electronic equipment, and the battery capacity of lithium batteries generally does not exceed 100mAh. Therefore, the existing electronic equipment has a small capacity of a power supply battery and a short battery life of the electronic equipment, which reduces user experience. Contents of the invention [0003] The present invention provides a power supply circuit of an electroni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/36
Inventor 王芬清郄勇叶鑫
Owner QINGDAO GOERTEK
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