US 11,942,862 B2
Voltage generation module and power supply management chip
Yonghua Zhou, Beijing (CN)
Assigned to Beijing ESWIN Computing Technology Co., Ltd., Beijing (CN); and Hefei ESWIN IC Technology Co., Ltd., Hefei (CN)
Appl. No. 17/612,289
Filed by Beijing ESWIN Computing Technology Co., Ltd., Beijing (CN); and Hefei ESWIN IC Technology Co., Ltd., Hefei (CN)
PCT Filed May 31, 2021, PCT No. PCT/CN2021/097229
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2022/110734, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 202011340598.0 (CN), filed on Nov. 25, 2020.
Prior Publication US 2023/0253880 A1, Aug. 10, 2023
Int. Cl. H02M 3/156 (2006.01); H02M 1/36 (2007.01)
CPC H02M 3/156 (2013.01) [H02M 1/36 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A voltage generation module, comprising a reference voltage generation circuit, a comparison circuit, a switch circuit and a voltage control circuit, wherein,
the reference voltage generation circuit is electrically connected to an input terminal, a first reference voltage terminal and a second reference voltage terminal, and is configured to generate a first reference voltage and a second reference voltage in accordance with an input voltage from the input terminal, output the first reference voltage through the first reference voltage terminal, and output the second reference voltage through the second reference voltage terminal;
the comparison circuit is electrically connected to the input terminal and the second reference voltage terminal, and configured to compare the second reference voltage with the input voltage, apply a turn-on control signal to a control terminal of the switch circuit in a case that the input voltage is smaller than the second reference voltage, and apply a turn-off control signal to the control terminal of the switch circuit in a case that the input voltage is larger than the second reference voltage;
the control terminal of the switch circuit is electrically connected to the comparison circuit, a first terminal of the switch circuit is electrically connected to the input terminal, a second terminal of the switch circuit is electrically connected to a voltage output terminal, and the switch circuit is configured to, in a case that the turn-on control signal is applied to the control terminal of the switch circuit, control the input terminal to be electrically connected to the voltage output terminal, and in a case that the turn-off control signal is applied to the control terminal of the switch circuit, control the input terminal to be electrically disconnected from the voltage output terminal; and
the voltage control circuit is electrically connected to the first reference voltage terminal and the voltage output terminal, and is configured to, in a case that the switch circuit controls the input terminal to be electrically disconnected from the voltage output terminal, control an output voltage signal from the voltage output terminal in accordance with the first reference voltage.