Title:
A DEVICE AND METHOD FOR REALIZING POWER SWITCH
Document Type and Number:
WIPO Patent Application WO/2010/045836
Kind Code:
A1
Abstract:
A device and method for realizing power switch. The device includes a first power circuit (1) and a second power circuit (2) connected to a load (3) in common. The first power circuit (1) includes a first controllable switch (15) which is connected between an input end and an output end of the first power circuit (1); and a first detecting circuit (16) which is set to control the first controllable switch (15) to close when detecting that the input end voltage of the first controllable switch (15) is higher than the output end voltage, and to control the first controllable switch (15) to open when detecting that the input end voltage of the first controllable switch (15) is lower than the output end voltage. The second power circuit (2) includes a second controllable switch (25) which is connected between an input end and an output end of the second power circuit (2); and a second detecting circuit (26) which is set to control the second controllable switch (25) to close when detecting that the input end voltage of the second controllable switch (25) is higher than the output end voltage, and to control the second controllable switch (25) to open when detecting that the input end voltage of the second controllable switch (25) is lower than the output end voltage. And a first power voltage (17) is higher than a second power voltage (27).
Inventors:
SUN, Jian (ZTE Plaza, Keji Road South Hi-Tech Industrial Park, Nansha, Shenzhen Guangdong 7, 518057, CN)
孙计安 (中国广东省深圳市南山区高新技术产业园科技南路中兴通讯大厦, Guangdong 7, 518057, CN)
孙计安 (中国广东省深圳市南山区高新技术产业园科技南路中兴通讯大厦, Guangdong 7, 518057, CN)
Application Number:
CN2009/074233
Publication Date:
April 29, 2010
Filing Date:
September 25, 2009
Export Citation:
Assignee:
ZTE CORPORATION (ZTE Plaza, Keji Road South Hi-Tech Industrial Park, Nansha, Shenzhen Guangdong 7, 518057, CN)
中兴通讯股份有限公司 (中国广东省深圳市南山区高新技术产业园科技南路中兴通讯大厦, Guangdong 7, 518057, CN)
SUN, Jian (ZTE Plaza, Keji Road South Hi-Tech Industrial Park, Nansha, Shenzhen Guangdong 7, 518057, CN)
中兴通讯股份有限公司 (中国广东省深圳市南山区高新技术产业园科技南路中兴通讯大厦, Guangdong 7, 518057, CN)
SUN, Jian (ZTE Plaza, Keji Road South Hi-Tech Industrial Park, Nansha, Shenzhen Guangdong 7, 518057, CN)
International Classes:
H02J9/06
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (Technology Fortune Center Suite B 305A, 8 Xueqing Rd Haidian, Beijing 5, 100085, CN)
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