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Patent Searching and Data


Title:
CONTROL CIRCUIT AND SWITCH DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/206065
Kind Code:
A1
Abstract:
Provided are a control circuit which can be expected to suppress a surge voltage applied to a switching element while also suppressing a switching loss at the time of a turn-off of the switching element, and a switch device. A control circuit (10) controls a switching element (1) having a gate (G1) and a source (S1) corresponding to the gate (G1). The control circuit (10) is provided with an inductor (L1), a circuit element (5), and a resistor (R1). The inductor (L1) is connected between the gate (G1) and the source (S1) of the switching element (1). Between the gate (G1) and the source (S1) is connected in series to the inductor (L1). Current flows through the circuit element (5) when an electromotive force is generated in the inductor (L1). The resistor (R1) is connected in parallel to the inductor (L1) and the circuit element (5) between the gate (G1) and the source (S1).

Inventors:
MAEDA, Ryosuke
KINOSHITA, Yusuke
ISHIDA, Hidetoshi
Application Number:
PCT/JP2021/014530
Publication Date:
October 14, 2021
Filing Date:
April 05, 2021
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (JP)
International Classes:
H03K17/08; H03K17/0814; H03K17/16; H03K17/66; H02M1/00; H02M1/08
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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