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公开(公告)号：JP2002027748A
公开(公告)日：2002-01-25
申请号：JP2001156981
申请日：2001-05-25
Applicant: CIT ALCATEL
Inventor： NAVAS SABATER JOSE ANDRES , RASCON MARTINEZ MIGUEL
Abstract: PROBLEM TO BE SOLVED: To provide a resonance switched power converter in which the end of a resonant period coincides with the start of a conducting period of a first switching element 11-4, undesirable dead times being avoided during the operation of a self-excited synchronous rectifier 11-6. SOLUTION: To achieve this, a first capacitor 11-8 is added which has the characteristic that its capacitance is a function of the duty cycle of the first switching element 11-4. The variation in the value of the capacitance of the first capacitor 11-8 is implemented by adding in parallel thereto a series combination of a second capacitor 11-8-1 and a second switching element 11-8-2. The value of the capacitance varies between a first value and a second value.
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2.发明申请MULTI-OUTPUT SWITCHED POWER CONVERTER PROVIDING AN UNINTERRUPTED VOLTAGE AT ONE OUTPUT 审中-公开多输出开关电源转换器在一个输出端提供不间断电压
公开(公告)号：WO0148899A3
公开(公告)日：2001-12-27
申请号：PCT/EP0013384
申请日：2000-12-18
Applicant: CIT ALCATEL , RASCON MARTINEZ MIGUEL , HUERTAS BLAZQUEZ ANTONIO JULIA
Inventor： RASCON MARTINEZ MIGUEL , HUERTAS BLAZQUEZ ANTONIO JULIA
CPC classification number: H02M3/33561 , H02J9/061 , H02M3/33592 , Y02B70/1475
Abstract: Multi-output switched power converter providing an uninterrupted voltage at one output and that is connected to a power source through input terminals. The switched converter includes a transformer (11) that comprises a first primary winding (11-1), a first secondary winding (11-2) connected in cascade with a first rectifier (17) and with a first filter (15) whose output is connected to a load. A second secondary winding (11-3) is connected in cascade with a second rectifier, comprising a second switching element (18-1) and a third switching element (18-2), and with a second filter, comprising a choke (16-1) and a capacitor (16-2), whose output is connected to a battery (12). A first control circuit (14) is adapted for regulating the first switching element (18-1) to permit the battery (12) to discharge through the second secondary winding (11-3), transferring energy to the first secondary winding (11-2), during those periods when the energy supply from the power source fails.
Abstract translation: 多输出开关电源转换器在一个输出端提供不间断电压，并通过输入端子连接到电源。 该开关变换器包括变压器（11），变压器（11）包括第一初级绕组（11-1），与第一整流器（17）级联的第一次级绕组（11-2）和第一滤波器（15） 连接到负载。 第二次级绕组（11-3）与包括第二开关元件（18-1）和第三开关元件（18-2）的第二整流器以及包括扼流圈（16）的第二滤波器级联连接， -1）和电容器（16-2），其输出端连接到电池（12）。 第一控制电路（14）适于调节第一开关元件（18-1）以允许电池（12）通过第二次级绕组（11-3）放电，将能量传递到第一次级绕组（11-1） 2），在这期间，电源的能源供应出现故障。
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公开(公告)号：JPH11206120A
公开(公告)日：1999-07-30
申请号：JP29542398
申请日：1998-10-16
Applicant: CIT ALCATEL
Abstract: PROBLEM TO BE SOLVED: To execute an adjustment of voltage in the main output of a switch power converter low in power of output and/or voltage, while keeping an insulation on a primary side and secondary side of the power converter. SOLUTION: A method is provided for controlling voltage with the main output of a low-power switch power converter, by creating a first signal 14 which shows the voltage with an auxiliary output being an image of main output voltage, and compounding this with a second signal 16 which shows the input current to the converter to create a first control signal, and adding this, together with a first reference signal, to the first control means to create a second control signal. The second control signal is added to a comparator together with the second signal having come from an oscillator means, and there a switching signal 17 to open and close a switching element 6 is created, consequently the voltage of the main output is adjusted.
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公开(公告)号：JPH11127579A
公开(公告)日：1999-05-11
申请号：JP22085098
申请日：1998-08-04
Applicant: CIT ALCATEL
Abstract: PROBLEM TO BE SOLVED: To provide a compact power converter for feeding electricity to an electronic circuit. SOLUTION: A power converter is constituted by a magnetic means, including a core formed by two core parts 21 and 22 made of a magnetic material, and at least one of coil windings of the magnetic means is printed on a printed circuit board 23. A remaining component for constituting the converter is assembled on the printed circuit board 23, and the printed circuit board 23 is completely surrounded by the cores. The printed circuit board 23 is placed inside a core window.
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Patent Agency Ranking
公开(公告)号：ES2157784B1
公开(公告)日：2002-02-16
申请号：ES9900936
申请日：1999-05-06
Applicant: CIT ALCATEL
IPC: H02M3/335
Abstract: Zero voltage switched power supply converter comprising a series combination of a first winding (11-3) and a first switching element (11-4). A second winding is connected to a second switching element (11-8) and to a storage capacitor (11-9), and a series combination of a second storage capacitor (11-8-1) and a third switching element (11-8-2) is connected in parallel with said second switching element (11-8), so that when the second switching element (11-8) becomes non-conducting, the third switching element (11-8-2) continues in the conduction state, starting a first resonance period that concludes when the third switching element (11-8-2) becomes non-conducting and starts a second free resonance period; the switching being achieved at zero voltage.
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公开(公告)号：CA2349899A1
公开(公告)日：2001-12-09
申请号：CA2349899
申请日：2001-06-07
Applicant: CIT ALCATEL
Inventor： NAVAS SABATER JOSE ANDRES , RASCON MARTINEZ MIGUEL
Abstract: Resonant switched power converter in which the end of a resonant period coincides with the start of a conducting period of a first switching element (11-4), undesirable dead times being avoided during the operation of a self-excited synchronous rectifier (11-6). To achieve this, a first capacitor (11-8) is added which has the characteristic that its capacitance is a function of the duty cycle of the first switching element (11-4). The variation in the value of the capacitance of the first capacitor (1 1- 8) is implemented by adding in parallel thereto a serial combination of a second capacitor (11-8-1) and a second switching element (11-8-2). The value of the capacitance varies between a first value and a second value.
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公开(公告)号：CA2349899C
公开(公告)日：2009-11-03
申请号：CA2349899
申请日：2001-06-07
Applicant: CIT ALCATEL
Inventor： RASCON MARTINEZ MIGUEL , NAVAS SABATER JOSE ANDRES
Abstract: Resonant switched power converter in which the end of a resonant period coincides with the start of a conducting period of a first switching element (11-4), undesirable dead times being avoided during the operation of a self-excited synchronous rectifier (11-6). To achieve this, a first capacitor (11-8) is added which has the characteristic that its capacitance is a function of the duty cycle of the first switching element (11-4). The variation in the value of the capacitance of the first capacitor (11-8) is implemented by adding in parallel thereto a serial combination of a second capacitor (11-8-1) and a second switching element (11-8-2). The value of the capacitance varies between a first value and a second value.
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公开(公告)号：CA2307441A1
公开(公告)日：2000-11-06
申请号：CA2307441
申请日：2000-05-02
Applicant: CIT ALCATEL
Abstract: Zero voltage switched power supply converter comprising a series combination of a first winding (11-3) and a first switching element (11-4). A second winding is connected to a second switching element (11-8) and to a storage capacitor (11-9), and a series combination of a second storage capacitor (11-8-1) and a third switching element (11-8-2) is connected in parallel with said second switching element (11-8), so that when the second switching element (11-8) becomes non-conducting, the third switching element (11-8-2) continues in the conduction state, starting a first resonance period that concludes when the third switching element (11-8-2) becomes non-conducting and starts a second free resonance period; the switching being achieved at zero voltage.
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公开(公告)号：AT261204T
公开(公告)日：2004-03-15
申请号：AT01401339
申请日：2001-05-22
Applicant: CIT ALCATEL
Inventor： NAVAS SABATER JOSE ANDRES , RASCON MARTINEZ MIGUEL
Abstract: Resonant switched power converter in which the end of a resonant period coincides with the start of a conducting period of a first switching element (11-4), undesirable dead times being avoided during the operation of a self-excited synchronous rectifier (11-6). To achieve this, a first capacitor (11-8) is added which has the characteristic that its capacitance is a function of the duty cycle of the first switching element (11-4). The variation in the value of the capacitance of the first capacitor (11-8) is implemented by adding in parallel thereto a serial combination of a second capacitor (11-8-1) and a second switching element (11-8-2). The value of the capacitance varies between a first value and a second value.
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