Title:
SECONDARY-SIDE POWER RECEPTION CIRCUIT FOR CONTACTLESS POWER FEED EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2012/124581
Kind Code:
A1
Abstract:
The present invention is provided with a PWM module (63) that outputs a drive pulse (P2) to a switching means (57) in synchronization with a synchronized pulse (P1) that has twice the frequency of the high-frequency current of primary-side induction wiring (14). By switching the switching means (57) to a contact state when the drive pulse (P2) is on, and to an open state when the drive pulse (P2) is off, the PWM module (63) implements output voltage feedback control to cause the output voltage of an output capacitor (56) to reach a reference voltage. When the power feed to the primary-side induction wiring (14) is to begin, the module (63) outputs, to the switching means (57), the width of the drive pulse (P2) as one half of the pulse width of the drive pulse that can be output. The module (63) forcibly implements output voltage feedback control if the output voltage does not reach the reference voltage within the reference time in which the output voltage (V2) of the output capacitor (56) should reach to the reference voltage.
Inventors:
YAMAMOTO MASAAKI
Application Number:
PCT/JP2012/055899
Publication Date:
September 20, 2012
Filing Date:
March 08, 2012
Export Citation:
Assignee:
DAIFUKU KK (JP)
YAMAMOTO MASAAKI
YAMAMOTO MASAAKI
International Classes:
B60L5/00; B60M7/00; H02M3/155
Foreign References:
| JP2010154696A | 2010-07-08 | |||
| JP2001025241A | 2001-01-26 | |||
| JP2006205884A | 2006-08-10 |
Attorney, Agent or Firm:
MORIMOTO INT'L PATENT OFFICE (JP)
Patent business corporation Morimoto international patent firm (JP)
Patent business corporation Morimoto international patent firm (JP)
Download PDF:
Claims: