Title:
MAGNETIC RECORDER/REPRODUCER
Document Type and Number:
Japanese Patent JPS6055886
Kind Code:
A
Abstract:
PURPOSE:To reduce power consumption and to prevent the influence to a stationary power source at a load abrupt change time by applying the necessary minimum voltage to a motor, and dividing a reference voltage source through a SEPP circuit to a motor power source and the stationary power source. CONSTITUTION:In a motor power source 2, the saturated voltages of motor drive P-N-P transistors Q2-Q4 are detected, and the necessary minimum voltages are applied to the motor. A reference voltage is divided through reference voltage circuits 7, 8 formed of SEPP circuits into a motor power source 6 and a stationary power source 5, thereby eliminating the influence to the power source 5 when the load of the motor abruptly varies in the power source 6.
Inventors:
DEGUCHI YOSHIHIRO
Application Number:
JP16475683A
Publication Date:
April 01, 1985
Filing Date:
September 06, 1983
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02P6/08; G11B15/18; H02P6/04; H02P6/06; (IPC1-7): G11B15/18
Domestic Patent References:
| JPS55117431A | 1980-09-09 | |||
| JPS5610093A | 1981-02-02 |
Attorney, Agent or Firm:
Yoshihiro Morimoto