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公开(公告)号：US11876452B2
公开(公告)日：2024-01-16
申请号：US17477813
申请日：2021-09-17
发明人： Jeongpyo Park , Taehwang Kong , Junhyeok Yang , Donghoon Jung
CPC分类号： H02M3/158 , H02M1/0016 , H02M1/15
摘要： A DC-DC converter including a switching buck regulator including a first power switch connected to a first power node, a second power switch connected to a second power node, a driver configured to drive the first and second power switches, an output filtering inductor connected to a node between the first and second power switches, and an output filtering capacitor connected to the output filtering inductor, a controller configured to compensate for an output signal of the switching buck regulator in a time domain using a reference voltage, and a feed forward circuit connected between the switching buck regulator and the controller, and including a first buffer, a second buffer, an RC filter, and an adder may be provided. Accordingly, the DC-DC converter can reduce a delay of a compensation circuit, improve transient response characteristics of the switching buck regulator, and further improve the performance of the DC-DC converter.
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公开(公告)号：US11340644B2
公开(公告)日：2022-05-24
申请号：US17315621
申请日：2021-05-10
发明人： Donghoon Jung , Tae-Hwang Kong , Sangho Kim , Junhyeok Yang , Jeongpyo Park
摘要： Disclosed is an electronic device, which includes an amplifier circuit that receives a feedback voltage and a reference voltage and amplifies a difference between the feedback voltage and the reference voltage to output an amplified difference voltage, an analog-to-digital converter that converts the amplified difference voltage to a digital code including two or more bits, and low-dropout (LDO) regulators that outputs output voltages based on the digital code. Each of the LDO regulators includes power transistors outputting a corresponding output voltage of the output voltages, drives one of the power transistors in a switching state, and drives each of remaining power transistors in a turned-on state or a turned-off state.
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