Title:
DEVICE AND METHOD FOR PROTECTING STARTING CIRCUIT OF DC-BRUSHLESS-MOTOR COMPRESSOR
Document Type and Number:
Japanese Patent JPH08223981
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress an excessive amount of current flowing to a motors when starting and to stabilize the start by providing a resistor on a circuit board and connecting the resistor in series to the coil of a DC brushless motor on initial drive. SOLUTION: A control part 1 controls, for example, the ON/OFF, the number of rotations, and the start current control part 9 of a DC brushless motor. When initially driving the DC brushless motor, the microprocessor 1 outputs a relay on signal to the start current control part 9. The start current control part 9 makes connection to a start resistor R4 in series using a relay and absorbs an excessive induction lead-in current on starting by the resistor R4. Then, a Hall sensor detection part 8 detects the number of rotations and the microprocessor 1 outputs a relay off signal to turn off the resistor R4 when a specific number of rotations is exceeded.
Inventors:
RI KENHIN
Application Number:
JP31559995A
Publication Date:
August 30, 1996
Filing Date:
December 04, 1995
Export Citation:
Assignee:
SAMSUNG ELECTRONIC
International Classes:
F25D11/00; F04B49/00; H02P6/06; H02P6/08; H02P6/17; H02P6/28; (IPC1-7): H02P6/20; F25D11/00
Domestic Patent References:
| JP1127398B | ||||
| JPS5359811A | 1978-05-30 |
Attorney, Agent or Firm:
Masatake Shiga (2 outside)
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