Title:
A GENERATING DEVICE OF REFERENCE ELECTRICAL SOURCE AND A VOLTAGE OUTPUT CONTROL DEVICE OF ELECTRICAL SOURCE
Document Type and Number:
WIPO Patent Application WO/2009/059527
Kind Code:
A1
Abstract:
A voltage output control device of electrical source includes an electrical
source regulating unit, a first resistor and a second resister. The device also
includes: a pulse width modulation (PWM) wave output module for outputting a
PWM wave of enactment duty ratio on the output port; a low-pass filtering unit
connected between the output end of the PWM wave output module and the regulating
end of the electrical source regulating unit for filtering the PWM wave. The PWM
wave is outputted by the PWM wave output module, and then it is commuted to direct
current wave by the low-pass filtering unit. The reference voltage of the electrical
sourceby changing the duty ratio of the PWM wave could be a multilevel adjustment.
Inventors:
XU, Haidong (Huawei Administration Building, Bantian LonggangDistric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2008/072852
Publication Date:
May 14, 2009
Filing Date:
October 28, 2008
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian LonggangDistric, Shenzhen Guangdong 9, 518129, CN)
华为技术有限公司 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
华为技术有限公司 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
International Classes:
H02M3/10; H02M1/08; H02M3/157; H02M3/04; H02M1/08
Attorney, Agent or Firm:
BEIJING CATALY IP ATTORNEY AT LAW (ZHENG, LimingSouth Division, the 8th Floor, Zhongtieke MansionDaliushu Road No. A2, Haidian District, Beijing 1, 100081, CN)
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