Title:
POWER SOURCE INPUT CIRCUIT AND INVERTER-INTEGRATED ELECTRIC COMPRESSOR FOR VEHICLE COMPRISING SAID CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/225509
Kind Code:
A1
Abstract:
[Problem] To provide a power source input circuit with which oscillation associated with an input current can be smoothly alleviated. [Solution] Provided is a power source input circuit comprising: a current detection resistor 21 for detecting a current on the basis of voltages occurring at both ends due to an inrush current; and a transistor Q3 having a collector connected to the gate of a power switching element Q2. In the transistor Q3, the base voltage changes according to the voltage occurring at both ends of the current detection resistor 21; and the transistor Q3 adjusts the gate voltage of the power switching element Q2, allowing for a constant current operation. A capacitor 28 is connected between the collector and the base of the transistor Q3.
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Inventors:
YOSHIDA HIROSHI (JP)
KURIBARA SAORI (JP)
KANAI TAKASHI (JP)
KURIBARA SAORI (JP)
KANAI TAKASHI (JP)
Application Number:
PCT/JP2019/019745
Publication Date:
November 28, 2019
Filing Date:
May 17, 2019
Export Citation:
Assignee:
SANDEN AUTOMOTIVE COMPONENTS CORP (JP)
International Classes:
G05F1/56; H02H9/02; H02J1/00; H03K17/08; H03K17/16; H03K17/687
Foreign References:
| JPS60181929U | 1985-12-03 | |||
| JP2012143114A | 2012-07-26 | |||
| JP2011010519A | 2011-01-13 | |||
| JPH0659909U | 1994-08-19 |
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