Title:
DRIVE CONTROLLER FOR INVERTER
Document Type and Number:
Japanese Patent JPS60152296
Kind Code:
A
Abstract:
PURPOSE:To protect a compressor and to increase the reliability of a system by varying data one by one when correcting the timer value of a data unit timer, thereby eliminating a variation in the abrupt output voltage. CONSTITUTION:The first microcomputer 5 generates a carrier period Tphi by its own signal generating means for inputted motor rotating frequency command (f- set), outputs the signal to the second microcomputer 6, and outputs T2 data for the signal of a unit timer T2 formed by the microcomputer 6. The signal inputted to the microcomputer 5 by a power source voltage variation detector 18 is outputted as boost data to the microcomputer 6 to correct the data unit timer T2 timer. At this time, the microcomputer 6 varies T2 data one by one.
Inventors:
KAMIYAMA KAZUMI
DEGUCHI TAKASHI
SUMINO MASAHIRO
HARADA SHIGEKI
DEGUCHI TAKASHI
SUMINO MASAHIRO
HARADA SHIGEKI
Application Number:
JP800384A
Publication Date:
August 10, 1985
Filing Date:
January 19, 1984
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02P27/06; H02M7/48; H02P27/08; (IPC1-7): H02M7/48; H02P7/63
Domestic Patent References:
| JPS5725171A | 1982-02-09 | |||
| JP57197793B |
Attorney, Agent or Firm:
Akira Kobiji (2 outside)