Patents by Inventor Da-Peng Zhang
Da-Peng Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8362714Abstract: An LED illumination system includes a control circuit having a timing unit, a control unit and a PWM signal generating unit. The timing unit divides an operating period of an LED lamp into a plurality of time segments, and outputs a clock signal at a start of each time segment to the control unit. The control unit outputs different controlling signals corresponding to the clock signals to the PWM signal generating unit, which in turn generates different PWM signals with different duty cycles. A constant current circuit electrically connects the control circuit to the LED lamp. The constant current circuit outputs different electric currents to the LED lamp according to the PWM signals, to thereby control the LED lamp to emit light having different light intensities at the various time segments of the operating period.Type: GrantFiled: January 28, 2010Date of Patent: January 29, 2013Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Chin-Long Ku, Da-Peng Zhang
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Patent number: 8242713Abstract: An LED illumination system includes a control circuit having a timing unit, a control unit, a PWM signal generating unit and a micro-programmed control unit (MCU). The timing unit divides an operating period of an LED lamp into different time segments, and outputs clock signals. The control unit outputs different controlling signals corresponding to the clock signals to the PWM signal generating unit, which in turn generates different PWM signals with different duty cycles. A constant current circuit electrically connects the control circuit and outputs different electric currents to make the LED lamp emit light having different light intensities at the different time segments. The MCU is at an outside of the LED lamp and sets a program to control the timing unit, the control unit and the PWM signal generating unit.Type: GrantFiled: March 7, 2010Date of Patent: August 14, 2012Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Chin-Long Ku, Da-Peng Zhang
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Patent number: 8115396Abstract: An LED lamp protecting circuit includes an LED lamp, a constant current source and a buffer circuit. The constant current source includes positive and negative input terminals, positive and negative output terminals and a switch. The buffer circuit is connected between the negative output terminal and the LED lamp. The buffer circuit includes a charging capacitor, a first NPN transistor and a second PNP transistor. An emitting electrode of the second transistor is connected to the LED lamp. A collecting electrode of the second transistor is connected to the negative output terminal. The charging capacitor is connected between the emitting electrode of the second transistor and a ground. A collecting electrode and an emitting electrode of the first transistor are respectively electrically connected to a base electrode of the second transistor and the ground.Type: GrantFiled: September 14, 2009Date of Patent: February 14, 2012Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Da-Peng Zhang, Chin-Long Ku
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Publication number: 20110140637Abstract: An LED illumination system includes a control circuit having a timing unit, a control unit, a PWM signal generating unit and a micro-programmed control unit (MCU). The timing unit divides an operating period of an LED lamp into different time segments, and outputs clock signals. The control unit outputs different controlling signals corresponding to the clock signals to the PWM signal generating unit, which in turn generates different PWM signals with different duty cycles. A constant current circuit electrically connects the control circuit and outputs different electric currents to make the LED lamp emit light having different light intensities at the different time segments. The MCU is at an outside of the LED lamp and sets a program to control the timing unit, the control unit and the PWM signal generating unit.Type: ApplicationFiled: March 7, 2010Publication date: June 16, 2011Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.Inventors: CHIN-LONG KU, DA-PENG ZHANG
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Publication number: 20110127929Abstract: An LED illumination system includes a control circuit having a timing unit, a control unit and a PWM signal generating unit. The timing unit divides an operating period of an LED lamp into a plurality of time segments, and outputs a clock signal at a start of each time segment to the control unit. The control unit outputs different controlling signals corresponding to the clock signals to the PWM signal generating unit, which in turn generates different PWM signals with different duty cycles. A constant current circuit electrically connects the control circuit to the LED lamp. The constant current circuit outputs different electric currents to the LED lamp according to the PWM signals, to thereby control the LED lamp to emit light having different light intensities at the various time segments of the operating period.Type: ApplicationFiled: January 28, 2010Publication date: June 2, 2011Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.Inventors: CHIN-LONG KU, DA-PENG ZHANG
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Publication number: 20110018446Abstract: An LED lamp protecting circuit includes an LED lamp, a constant current source and a buffer circuit. The constant current source includes positive and negative input terminals, positive and negative output terminals and a switch. The buffer circuit is connected between the negative output terminal and the LED lamp. The buffer circuit includes a charging capacitor, a first NPN transistor and a second PNP transistor. An emitting electrode of the second transistor is connected to the LED lamp. A collecting electrode of the second transistor is connected to the negative output terminal. The charging capacitor is connected between the emitting electrode of the second transistor and a ground. A collecting electrode and an emitting electrode of the first transistor are respectively electrically connected to a base electrode of the second transistor and the ground.Type: ApplicationFiled: September 14, 2009Publication date: January 27, 2011Applicants: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: DA-PENG ZHANG, CHIN-LONG KU
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Publication number: 20090044291Abstract: This application provides a recombinant expression cassette for expressing the H subunit of Mg-chelatase, a plant gene product that is newly identified as an abscisic acid receptor. Also provided are a transgenic plant with drought-resistance and a method for producing such plants.Type: ApplicationFiled: August 28, 2007Publication date: February 12, 2009Applicant: D-HelixInventors: Da-Peng Zhang, Yuan-Yue Shen, Xiao-Fang Wang, Fu-Qing Wu, Shu-Yuan Du, Zheng Cao, Yi Shang, Yan-Hong Xu
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Publication number: 20040232709Abstract: The present utility model is to provide a remotely controlled female lock, comprises a lock body, a latch and an electronic controller; said latch includes a latch body assembly, an unlock linkage mechanism and a relay, characterized in that, said lock further includes a remote controller, said remote controller comprises a radio transmitting-encoding circuit; said electronic controller comprises a radio receiving-decoding circuit, and said radio receiving-decoding circuit receives coded signals transmitted from said radio transmitting-encoding circuit, decodes the coded signals, and then transmits control signals to make the relay in the latch to electrically connected or disconnected. By implementing the remotely controlled lock of the present utility model, people can control the locking and unlocking at will by the remote controller within certain range, and the operation is very convenient.Type: ApplicationFiled: July 1, 2004Publication date: November 25, 2004Inventors: Da-peng Zhang, Martin Ralph Handford Cane
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Patent number: D627911Type: GrantFiled: December 7, 2009Date of Patent: November 23, 2010Assignee: Foxconn Technology Co., Ltd.Inventors: Ci-Jin Mo, Da-Peng Zhang