Title:
【発明の名称】交流モータの相電圧測定装置及びその測定方法
Document Type and Number:
Japanese Patent JP2677495
Kind Code:
B2
Abstract:
A phase voltage measuring device for an alternating current and a measuring method thereof for detecting a voltage from a main power supply Vcc supplied to a motor, wherein the voltage is converted to a digital signal which is multiplied by a basic pulse width modulation signal for detection of the phase voltage. A phase voltage measuring device and a measuring method have the advantage of measuring a phase voltage with a simple circuit by eliminating the problems associated with a conventional phase voltage measuring device which uses a current measuring coil and a pulse converter.
Inventors:
Gold Tohnichi
Application Number:
JP28305392A
Publication Date:
November 17, 1997
Filing Date:
October 21, 1992
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G01R19/165; H02P21/00; H02P21/14; H02P23/24; H02P27/04; H02P27/06; H02P27/08; (IPC1-7): H02P21/00; G01R19/165; H02P7/63
Domestic Patent References:
| JP2101985A | ||||
| JP2129562A | ||||
| JP4222470A |
Attorney, Agent or Firm:
Masatake Shiga (3 outside)