Title:
DYNAMIC BRAKING CONTROLLER OF ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JPH07284295
Kind Code:
A
Abstract:
PURPOSE: To provide the generation braking and controlling device for preventing the breakdown of constituent elements, when the rotating speed of a motor is rapidly decreased or the rotating direction of the motor is rapidly decreased and changed. CONSTITUTION: The voltage value for the current generated in an electrostatic voltage source 2 and a reference voltage value are mutually compared. The control signal is outputted to a drive means in correspondence with the result of the comparison, and the switching operations of two pairs of switching transistors are controlled. At the same time, the application of the inverse generated voltage generated by a motor 1 on the electrostatic voltage source 2 is prevented. Furthermore, the driving voltage value generated in the electrostatic voltage source 2 is compared with the preset reference voltage. In correspondence with a result, the switching means for braking the electric generation is controlled. Thus, the constituent elements are not broken by the overcurrent which is outputted from the electrostatic voltage source.
Inventors:
JIYON GUN KIMU
DEYUKU YON EOMU
JIYUN GIYU RII
DEYUKU YON EOMU
JIYUN GIYU RII
Application Number:
JP30682094A
Publication Date:
October 27, 1995
Filing Date:
November 16, 1994
Export Citation:
Assignee:
SAMSUNG HEAVY IND
International Classes:
B60L7/04; H02P3/12; H02P7/00; H02P7/03; H02P7/29; (IPC1-7): H02P7/29; B60L7/04
Attorney, Agent or Firm:
Kazuo Shigenobu (1 person outside)