Tag Archives: width

Method and device based on modulation percentage for controlling instantaneous value of pulse width modulated sine waves for inverter

Application Number: 00117153Application Date: 2000.06.07Publication Number: 1281289Publication Date: 2001.01.24Priority Information: International: H02M7/00;H02M7/42Applicant(s) Name: Huawei Electric Technology Co Ltd. Shenzhen CityAddress: Inventor(s) Name: Sun Wenhuan;Zhou Dangsheng;Zhang YunxiangPatent Agency Code: 44217Patent Agent: guo weigangAbstract A method based on modulation percentage for controlling the instantaneous value of sine pulse width modulation (SPWM) for inverter and its device are… Read More »

Proportional-integral-derivative control method of instantaneous value by directly regulating pulse width and its UPS

Application Number: 00117164Application Date: 2000.06.09Publication Number: 1281291Publication Date: 2001.01.24Priority Information: International: H02J7/00;H02M7/00;H02M7/42Applicant(s) Name: Huawei Electric Technology Co Ltd. Shenzhen CityAddress: Inventor(s) Name: Sun Wenhuan;Zhou Dangsheng;Zhang YunxiangPatent Agency Code: 44217Patent Agent: guo weigangAbstract A pseudo-interrupt device (PID) control method and its UPS are disclosed. The inverter is controlled by combination of rapid fuzzy compensation with the… Read More »

Plasma display using width of transparent electrode to control colour temp

Application Number: 00118661Application Date: 2000.06.20Publication Number: 1330386Publication Date: 2002.01.09Priority Information: International: H01J17/04;H01J17/49Applicant(s) Name: Daqi Science and Technology Co LtdAddress: Inventor(s) Name: Lin Yizhe;Su YaoqingPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract A plasma display is composed of back plate, front plate above the back plate, several electrode pairs and several barriers. Each electrode pair has the… Read More »

Pulse width modulation type contravariant device

Application Number: 00118986Application Date: 2000.07.05Publication Number: 1291822Publication Date: 2001.04.18Priority Information: 1999/7/5 JP 190674/99International: H02M3/28;H02M3/335Applicant(s) Name: TDK Corp.Address: Inventor(s) Name: Ito Ichiyuki;Okita Yoshihisa;Tanaka KatsuakiPatent Agency Code: 11105Patent Agent: ma yingAbstract This PWM inverter apparatus includes a first and second current control type semiconductor switching elements connected in series which are connected in parallel to a DC… Read More »

Pulse width modulation control system

Application Number: 00120748Application Date: 2000.07.07Publication Number: 1280418Publication Date: 2001.01.17Priority Information: 1999/7/9 KR 27754/1999International: H02M5/458;H02P7/63;H03K3/00Applicant(s) Name: LG Industrial System Co., Ltd.Address: Inventor(s) Name: Pae Gyo-SongPatent Agency Code: 11219Patent Agent: yu mangAbstract The present invention relates to a pulse width modulation control system, comprises a counter which sets initial voltage value differently and outputs chopping wave crossed… Read More »

Electrical connector capable of reducing width

Application Number: 00121724Application Date: 2000.04.27Publication Number: 1284767Publication Date: 2001.02.21Priority Information: 1999/4/28 JP 123079/99International: H01R13/00;H01R13/46;H01R13/40;H01R24/00Applicant(s) Name: Molex Inc.Address: Inventor(s) Name: Hirata Tomohisa;Sasao SeibiPatent Agency Code: 72001Patent Agent: yang songlingAbstract An electrical connector having an conductive terminals with solder tabs arranged in an insulative in a manner to enable miniaturization without risking defective soldering during manufacture. The… Read More »

Method for making explosion cladding board with large width

Application Number: 00123052Application Date: 2000.09.29Publication Number: 1345644Publication Date: 2002.04.24Priority Information: International: B23K20/08Applicant(s) Name: Dalian Univ. of Science & EngineeringAddress: Inventor(s) Name: Li Xiaojie;Xi Jinyi;Dong ShouhuaPatent Agency Code: 21200Patent Agent: hou mengyuanAbstract The method for making large-breadth explosion composition plate is mainly characterized by that an initiator bar with high detonation velosity and stable initiation function… Read More »

Pulse width regulating method and device independent from voltage

Application Number: 00123684Application Date: 2000.08.28Publication Number: 1339868Publication Date: 2002.03.13Priority Information: International: H02P6/08;H02P7/29Applicant(s) Name: Wangjiu Science and Technology Co., Ltd.Address: Inventor(s) Name: Xu Jiazhang;Yang Zhishi;Lin WentaiPatent Agency Code: 11127Patent Agent: liu shichangAbstract In the pulse with regulating method, one voltage linearity related current source is first used to charge a capacitor and the voltage across the… Read More »

Pulse width modulation control equipment

Application Number: 00108755Application Date: 2000.05.31Publication Number: 1296329Publication Date: 2001.05.23Priority Information: 1999/6/1 EP 99401317.5International: H02M1/00;H02M7/5395;H04N5/63Applicant(s) Name: SEmiconductor Element Industries Inc.Address: Inventor(s) Name: Joseph Haramic;Fransova Lehemit;Juraier TurkyPatent Agency Code: 11038Patent Agent: ma gaoAbstract A pulse Width Modulation (PWM) control circuit is used in a switched-mode power supply (SMPS) having a normal mode and a standby mode, for… Read More »

Short-delay MF or HF clock pulse width regulating circuit

Application Number: 00105997Application Date: 2000.04.24Publication Number: 1321003Publication Date: 2001.11.07Priority Information: International: G06F1/04Applicant(s) Name: Huawei Technology Co., LtdAddress: Inventor(s) Name: Yin DengqingPatent Agency Code: 00000Patent Agent: Abstract A short-delay MF or HF clock pulse width regulator suitable for the clock signal under 400 MH2 is composed of a lag comparator for comparing a sine signal with… Read More »

Long-delay clock pulse width regulating circuit

Application Number: 00105996Application Date: 2000.04.24Publication Number: 1321002Publication Date: 2001.11.07Priority Information: International: G06F1/04;H03K5/13Applicant(s) Name: Huawei Technology Co., LtdAddress: Inventor(s) Name: Yin DengqingPatent Agency Code: 00000Patent Agent: Abstract A long-delay clock pulse width regulator is composed of a lag comparator for comparing a sine signal with a DC level to output a clock signal with defined duty… Read More »

Pulse width detection

Application Number: 00104901Application Date: 2000.03.30Publication Number: 1271177Publication Date: 2000.10.25Priority Information: 1999/3/30 US 09/281020International: H01L21/66Applicant(s) Name: Infineon Tech. North America Corp.Address: Inventor(s) Name: g. Frankefski;H. TritzkiPatent Agency Code: 72001Patent Agent: wu limengAbstract A semiconductor circuit is provided including circuitry for producing a pulse. A plurality, n, of delay elements are provided each enabled and disabled by… Read More »

In-site width measurement method

Application Number: 00100573Application Date: 2000.01.26Publication Number: 1307224Publication Date: 2001.08.08Priority Information: International: G01B11/04Applicant(s) Name: No.27 Electronics Inst., Ministry of Information IndustryAddress: Inventor(s) Name: Lu Zhigong;Jia Zhiguo;Huang HaixiaPatent Agency Code: 11010Patent Agent: li zhiAbstract Technologically, the measurement is that four edge positions are measured by means of double-lens imaging and used for calculation the 2D coordinates and… Read More »