US 12,143,013 B2
Power supply output device
Frank Warnes, Milton Keynes (GB)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jan. 26, 2022, as Appl. No. 17/585,065.
Application 17/585,065 is a continuation of application No. PCT/GB2020/051768, filed on Jul. 23, 2020.
Claims priority of application No. 1910932 (GB), filed on Jul. 31, 2019.
Prior Publication US 2022/0149735 A1, May 12, 2022
Int. Cl. H02M 1/08 (2006.01); H02M 3/158 (2006.01); H03K 17/082 (2006.01); H03K 17/16 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/08 (2013.01); H03K 17/0828 (2013.01); H03K 17/168 (2013.01); H03K 2217/0081 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A power supply output device for a DC-DC converter configured to provide a supply voltage, the power supply output device comprising:
a supply input to receive a supply voltage from the DC-DC converter;
a voltage divider to convert the supply voltage into a bipolar voltage output to be supplied to a gate driver circuit and including first and second output voltage values;
a voltage clamp to initially set one of the first or the second output voltage values of the bipolar voltage output to a first predetermined voltage;
an output to supply the bipolar voltage output to the gate driver circuit, the gate driver circuit being capable of outputting a drive output based on the bipolar output voltage to drive a gate of a switch; and
an adjustment circuit to adjust the one of the first or the second output voltage values of the bipolar voltage output based on the drive output of the gate driver circuit to maintain the drive output of the gate driver circuit at a second predetermined voltage.