Title:
端末デバイスの電源回路、端末デバイス、及び電力供給方法
Document Type and Number:
Japanese Patent JP7169444
Kind Code:
B2
Abstract:
A power supply circuit of a terminal device is provided. The power supply circuit includes a voltage boost circuit, a battery chip, and a controller. The battery chip is configured to provide an output voltage of a battery for a load. An input end of the voltage boost circuit is connected to a positive electrode of the battery, and an output end of the voltage boost circuit is connected to the load. The voltage boost circuit is configured to boost an input voltage and then output a boosted voltage. The controller is configured to: when a sampling temperature is less than a preset temperature value and/or the output voltage of the battery is less than a first preset voltage value, control the voltage boost circuit to work and control the battery chip to stop supplying power to the load; and when an output voltage of the voltage boost circuit is less than an input voltage of the voltage boost circuit, control the battery chip and the voltage boost circuit to simultaneously supply power to the load. In this solution, the output voltage of the battery may be boosted when the temperature is relatively low and/or the output voltage of the battery is relatively low. In addition, when a relatively high pulse current occurs on the terminal and the output voltage of the voltage boost circuit is stepped down, both the battery chip and the voltage boost circuit can be controlled to supply power to the load, to boost a power supply current.
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Inventors:
Chiu Yuipong
Li Ruoilian
Zhou Haibin
Jan Fenway
Li Ruoilian
Zhou Haibin
Jan Fenway
Application Number:
JP2021524083A
Publication Date:
November 10, 2022
Filing Date:
July 27, 2018
Export Citation:
Assignee:
Honor Device Company Limited
International Classes:
H02J7/00; G06F1/26
Domestic Patent References:
| JP2007529185A | ||||
| JP2014524232A | ||||
| JP2003189485A | ||||
| JP2006081369A |
Foreign References:
| CN103181054A | ||||
| US20060119322 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki