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US 2026/0312422 A1Published application
Power supply device and operation method thereof
AssigneeSK hynix Inc.
InventorsEun Kyu CHOI, Dong Jun KIM, Hyeong Rak KIM
Life of this patent
Estimating the term…
Abstract
A power supply device includes: a main power supply configured to be supplied with external power to output charging power and main power; an auxiliary power supply configured to be charged from the charging power to output auxiliary power; and a charging circuit configured to measure a charged voltage based on the auxiliary power, and perform, when the charged voltage exceeds a reference voltage, a monitoring operation on the auxiliary power to generate a monitoring result.
Claims20
A power supply device comprising:
- a main power supply configured to be supplied with external power to output charging power and main power;
- an auxiliary power supply configured to be charged with the charging power to output auxiliary power;
- and
- a charging circuit configured to measure a charged voltage based on the auxiliary power, and
- perform, when the charged voltage exceeds a reference voltage, a monitoring operation on the auxiliary power to generate a monitoring result.
2 more elements
A method of operating a power supply device, the method comprising:
- charging auxiliary power in an auxiliary power supply using charging power applied to the auxiliary power supply;
- comparing charged voltage based on the auxiliary power with a reference voltage to activate a reference signal;
- and
- performing, according to activation of the reference signal, a monitoring operation on the auxiliary power supply to generate a monitoring result.
1 more element
A power system comprising:
- a main power supply configured to be supplied with external power to output charging power and main power;
- an auxiliary power supply configured to be charged with the charging power to output auxiliary power;
- a charging circuit configured to measure a charged voltage based on the auxiliary power, perform, when the charged voltage exceeds a reference voltage, a monitoring operation on the auxiliary power to generate a monitoring result;
- and
- a controller configured to control the charging circuit.
2 more elements
Dependencies are inferred from the claim text.