Title:
SIGNAL COMPENSATION METHOD FOR PASSIVE SIGNAL ISOLATORS
Document Type and Number:
WIPO Patent Application WO/2008/009195
Kind Code:
A1
Abstract:
A signal compensation method for passive signal isolators, which adds a compensation transformer
in the passive signal isolator circuit, wherein a primary coil of the compensation
transformer is connected to a primary or secondary coil of the main transformer
in the circuit in serial, one lead of the secondary coil of the compensation transformer
passes through an annular core of the main transformer in the direction of current
increase, and then the lead is connected according to the function of the compensation
transformer and the turn number ratio of the primary and secondary coils of the
compensation transformer is got by the necessary error compensation, which
can increase the field strength by 1/n times of the main transformer when the secondary
coil of the compensation one passes through the annular core of the main one, so
that the isolation transmission of signals can get the compensation by 1/n times
and precision of the passive signal isolator is improved.
Inventors:
YIN XIANGYANG (CN)
MO DINGMIN (CN)
MO DINGMIN (CN)
Application Number:
PCT/CN2007/001599
Publication Date:
January 24, 2008
Filing Date:
May 17, 2007
Export Citation:
Assignee:
HIGHWAY GUANGZHOU ELETRON SCIE (CN)
YIN XIANGYANG (CN)
MO DINGMIN (CN)
YIN XIANGYANG (CN)
MO DINGMIN (CN)
International Classes:
H01F27/42; H01F29/08
Foreign References:
| CN2212828Y | 1995-11-15 | |||
| US4172244A | 1979-10-23 | |||
| CN2251158Y | 1997-04-02 | |||
| JPS5565418A | 1980-05-16 |
Attorney, Agent or Firm:
GUANGZHOU ZHIYOU PATENT & TRADEMARK AGENCY CO., LTD. (100 XianLie Zhong RoadGuangzhou, Guangdong 0, CN)
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