Title:
POWER UNIT
Document Type and Number:
Japanese Patent JP2016073108
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power unit capable of preventing output of a feedback circuit from being varied when feedback control is performed, by the feedback circuit, on a switching element connected to a primary-side coil of a transformer in accordance with an output voltage of an insulation type DC/DC conversion circuit.SOLUTION: A feedback circuit 50 includes: a voltage detection/signal conversion part 51 which detects an output voltage of an insulation type DC/DC conversion circuit 30 and converts an output voltage from a DC signal into a PWM signal; an insulation part 52 having an input part 52c and an output part 52d that are insulated in such a manner that the input and output parts correspond to a primary-side coil 31a and a secondary-side coil 31b of a transformer 31, which inputs the PWM signal after the conversion by the voltage detection/signal conversion part 51 from the input part 52c and outputs the PWM signal from the output part 52d; and a signal inverse conversion part 53 which inversely converts the PWM signal outputted from the insulation part 52 into a DC signal.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO YUSUKE
Application Number:
JP2014200832A
Publication Date:
May 09, 2016
Filing Date:
September 30, 2014
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H02M3/28; H02M7/48
Domestic Patent References:
| JPH1155960A | 1999-02-26 | |||
| JP2003033011A | 2003-01-31 | |||
| JP2009017702A | 2009-01-22 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda