US 11,122,708 B1Granted

Electronic device

AssigneeBeijing Xiaomi Mobile Software Co., Ltd.

InventorJie Fan

Life of this patent

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Abstract

The disclosure provides an electronic device that includes a first circuit board, a second circuit board, a charge pump chipset, a battery, and a control component. The charge pump chipset can be coupled to the battery, and include at least two charge pump chips provided on the first circuit board and at least two charge pump chips provided on the second circuit board. The control component is configured to control one charge pump chip on the first circuit board and at least one charge pump chip on the second circuit board to be in a working state at the same time and, in response to a temperature of the charge pump chip on the first circuit board in the working state being higher than a set threshold, to switch any charge pump chip on the first circuit board with the temperature lower than the set threshold to the working state.

Claims13

Dependent claims

An electronic device, comprising:

a first circuit board;
a second circuit board that is provided on the first circuit board;
a battery;
a charge pump chipset coupled to the battery and including at least two charge pump chips provided on the first circuit board and at least two charge pump chips provided on the second circuit board, the charge pump chips on the first circuit board being coupled in parallel with the charge pump chips on the second circuit board;
and
a control component that is configured to control one charge pump chip on the first circuit board and at least one charge pump chip on the second circuit board to simultaneously be in a working state and, in response to a temperature of the charge pump chip on the first circuit board in the working state being higher than a set threshold, switch any charge pump chip on the first circuit board having a temperature lower than the set threshold to the working state.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/987,102Filed 6 Aug 2020
Priority: CN 202010177304.013 Mar 2020
Published: US 2021/0289656 A116 Sep 2021
Granted: 14 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H02J 7/65
Including safety or protection arrangements: against overtemperature
H05K 7/2039
Modifications to facilitate cooling, ventilating, or heating: characterised by the heat transfer by conduction from the heat generating element to…
H02J 7/731
Characterised by the mechanical construction: specially adapted for holding portable devices containing batteries
H05K 1/0203
Thermal arrangements, e.g. for cooling, heating or preventing overheating: cooling of mounted components

Family

US 2021/0289656 A1Published application
US 11,122,708 B1This patent

From the US filing history. Foreign family members aren’t listed.

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