US 12,422,870 B2
Power supply, method for voltage compensation and electronic device
Weiming Qiu, Beijing (CN); Jinyuan Wei, Beijing (CN); Renlian Qiu, Beijing (CN); and Chuming Shih, Beijing (CN)
Assigned to General Power Microelectronics Technology Limited, Beijing (CN)
Filed by General Power Microelectronics Technology Limited, Beijing (CN)
Filed on Apr. 12, 2023, as Appl. No. 18/299,306.
Claims priority of application No. 202210796999.X (CN), filed on Jul. 6, 2022.
Prior Publication US 2024/0012436 A1, Jan. 11, 2024
Int. Cl. G05F 1/46 (2006.01)
CPC G05F 1/463 (2013.01) 14 Claims
OG exemplary drawing
 
1. A power supply, comprising:
a plurality of temperature compensation modules, for providing a plurality of reference voltages respectively based on a plurality of temperature curves which are not identical, and each of the temperature curve linearly characterizing a corresponding relationship between the reference voltage and temperature in a plurality of temperature ranges respectively; and
a summation module, for providing an output voltage in accordance with the plurality of reference voltages,
wherein for at least one temperature curve, at least two temperature ranges correspond to different temperature coefficients, so that an output voltage curve characterizing the output voltage changing with temperature has not identical temperature coefficients at least in two temperature ranges, and a critical temperature between temperature ranges in the output voltage curve corresponds to a stable output voltage.