Title:
ELECTRIC SOURCE CIRCUIT
Document Type and Number:
Japanese Patent JPH02273072
Kind Code:
A
Abstract:
PURPOSE: To enable smooth starting by variably controlling the signal level of a function generator corresponding to the value of the DC output voltage, which can be a second value or a first value. CONSTITUTION: A starting circuit 3 has a charging power source 31 for charging a capacitor 32. When the DC output voltage has a first value, the signal of the capacitor 32 becomes higher than a signal generated from a function generator 2; and when the DC output voltage has a second value or a value which is higher than the first value and a preset value, the signal of the capacitor 32 becomes lower than a signal generated from the function generator 2. Thus, when the output voltage has the first value, the signal of the capacitor 32 becomes high level. Under such a condition, the signal of the capacitor 32 does not has any influence upon the operation of the power source circuit.
Inventors:
ANTONIUSU ADORIANUSU MARIA MAR
Application Number:
JP4964290A
Publication Date:
November 07, 1990
Filing Date:
March 02, 1990
Export Citation:
Assignee:
PHILIPS NV
International Classes:
H02M3/28; H02M1/00; H02M1/36; H02M3/335; (IPC1-7): H02M3/28
Domestic Patent References:
| JPS535719A | 1978-01-19 | |||
| JPS5341718A | 1978-04-15 | |||
| JPS5482051A | 1979-06-29 | |||
| JPS55136492A | 1980-10-24 | |||
| JP61185288B | ||||
| JP62185489B | ||||
| JPS6336188B2 | 1988-07-19 |
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)