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1.发明公开
公开(公告)号：EP2820748A4
公开(公告)日：2015-03-04
申请号：EP12869595
申请日：2012-03-01
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON MAGNUS , PERSSON OSCAR
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公开(公告)号：EP2878073A4
公开(公告)日：2016-04-20
申请号：EP12881723
申请日：2012-07-27
Applicant: ERICSSON TELEFON AB L M
Inventor： PERSSON OSCAR , KARLSSON MAGNUS , YANG XUEFENG
CPC classification number: H02M3/1588 , H02M1/36 , H02M3/1584 , H02M3/285 , H02M3/33592 , Y02B70/1466 , Y02B70/1475
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3.发明申请CONTROL OF DYNAMIC BUS VOLTAGE IN AN INTERMEDIATE BUS ARCHITECTURE POWER SYSTEM 审中-公开中间总线结构电力系统中动态总线电压的控制
公开(公告)号：WO2012143050A3
公开(公告)日：2013-03-28
申请号：PCT/EP2011056369
申请日：2011-04-20
Applicant: ERICSSON TELEFON AB L M , MALMBERG JONAS , BORGENGREN HENRIK , KARLSSON MAGNUS , KULLMAN ANDERS , PERSSON OSCAR , WAHLEDOW FREDRIK
Inventor： MALMBERG JONAS , BORGENGREN HENRIK , KARLSSON MAGNUS , KULLMAN ANDERS , PERSSON OSCAR , WAHLEDOW FREDRIK
CPC classification number: H02J1/08 , G06F1/26 , G06F1/3253 , H02M3/157 , H02M3/158 , H02M2001/007 , H02M2001/008 , Y02D10/151
Abstract: To reduce power loss in an intermediate bus architecture power system, an intermediate bus converter is provided which converts an input voltage to an intermediate bus voltage using a converting unit; receives a signal indicative of an output of a converting unit; determines an intermediate bus voltage to reduce power loss in dependence upon the signal indicative of an output of the converting unit; generates a control signal to control the converting unit to convert the input voltage to the determined intermediate bus voltage; and generates an intermediate bus voltage in dependence upon the control signal.
Abstract translation: 为了减少中间总线架构电源系统的功率损耗，提供了一种中间总线转换器，其使用转换单元将输入电压转换为中间总线电压; 接收指示转换单元的输出的信号; 根据指示转换单元的输出的信号，确定中间总线电压以减少功率损耗; 产生控制信号以控制转换单元将输入电压转换成所确定的中间总线电压; 并根据控制信号产生中间总线电压。
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Patent Agency Ranking
公开(公告)号：IN9471DEN2014A
公开(公告)日：2015-07-17
申请号：IN9471DEN2014
申请日：2014-11-11
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON MAGNUS , PERSSON OSCAR
IPC: H02M3/337
Abstract: A control circuit operable to generate a control signal (D) to control the duty cycle of a switched mode power supply (100), The control circuit comprises an. input terminal (205) for receiving a signal indicative of an input voltage (V) of the switched mode power supply (100), and a reference signal generator (210) operable to generate in dependence upon the received signal a reference signal (VR) that is a function of the input voltage (VIN). The control circuit further comprises an error signal generator (230) arranged to receive a signal indicative of an output voltage (VOUT) of the switched mode power supply (100) and operable to generate an error signal (V) based on the reference signal (VIN) and based on the output voltage (VOUT). The control circuit also includes a low pass filter (225) connected between the input terminal (205) and the error signal generator (230), in series with the reference signal generator (210), and a duty cycle control signal generator (250) operable to generate the control signal (D) to control the duty cycle of the switched mode power supply (100) in dependence upon the error signal (VE).
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公开(公告)号：IN3188DEN2014A
公开(公告)日：2015-05-22
申请号：IN3188DEN2014
申请日：2014-04-22
Applicant: ERICSSON TELEFON AB L M
Inventor： PERSSON OSCAR , KARLSSON MAGNUS , MALMBERG JONAS
IPC: H02M1/32
Abstract: The present disclosure relates to methods a system and a module for operating a power converter module (1) the power converter module (1) comprises a voltage converter (4) an output circuitry (7) and a processing circuitry (8) operable for controlling the voltage converter (4). According to an embodiment the method comprises transmitting (10) a first status signal representing operating parameters of the voltage converter (4) to the processing circuitry (8). Determining (11) whether the status of the voltage converter (4) is acceptable or unacceptable. The method also comprises transmitting (12) a second status signal representing the operating parameters of the output circuitry (7) to the processing circuitry (8). The method also comprises determining (13) if the second status signal is above a predetermined threshold value. When the second status signal is above said predetermined threshold value and the status of the voltage converter (4) is acceptable (14) entering a peak output mode (15). The peak output mode (15) involves determining (16) based on a maximum output voltage if the output voltage is allowed to increase. If allowed increasing (17) the output voltage and operating (18) the voltage converter (4) at maximum power dissipation as long as the status of the voltage converter (4) is acceptable and the second status signal is above said predetermined threshold value (19).
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公开(公告)号：IN1763KON2014A
公开(公告)日：2015-10-23
申请号：IN1763KON2014
申请日：2014-08-21
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON MAGNUS , PERSSON OSCAR
Abstract: RdesRvarininoutERRvarRdesoutEA control circuit (200) operable to generate a control signal (D) to control the duty cycle of a switched mode power supply (100). The control circuit (200) comprises a reference voltage generator (201) operable in a first mode to generate a predetermined reference signal (V) and operable in a second mode to receive a signal indicative of an input voltage (Vin) of the switched mode power supply (100) and generate a variable reference signal (V) dependent upon the input voltage (V) the reference voltage generator (201) being configured to operate in the first mode when the input voltage (V) exceeds a threshold value and to operate in the second mode when the input voltage (Vin) is equal to or smaller than said threshold value. The control circuit (200) further comprises an error signal generator (202) operable to receive a signal indicative of an output voltage (V) of the switched mode power supply (100) and operable to generate an error signal (V) based on the reference signal (V; V V) generated by the reference voltage generator (201) and based on the output voltage (V). The control circuit (200) also includes a duty cycle control signal generator (204) operable to generate the control signal (D) to control the duty cycle of the switched mode power supply (100) in dependence upon the error signal (V).
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公开(公告)号：IN10269DEN2014A
公开(公告)日：2015-08-07
申请号：IN10269DEN2014
申请日：2014-12-02
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON MAGNUS , PERSSON OSCAR
IPC: H02M3/335
Abstract: A control circuit (210) operable to control the switching of switching elements in a switched mode power supply (200). The control circuit (210) comprises a switching control signal generator (220) operable to generate control signals for switching the switching elements such that the switched mode power supply converts an input voltage (V to an output voltage (V out). The control circuit (210) further comprises an operation mode setting module (260) which is operable to receive a signal (I) indicative of a current flowing to a load that is connected to an output of the switched mode power supply, and operable to cause the switching control signal generator (220) to generate the control signals so as to operate the switched mode power supply (200) in a continuous conduction mode or a pulse skipping mode in dependence upon the current. In the pulse skipping mode, the switching elements are turned OFF for at least one switching period of the switched mode power supply (200) but the switched mode power supply continues to supply power to the load. The operation mode setting module (260) is operable to monitor the signal (I) to determine whether the current exceeds a threshold, and is operable to control the switching control signal generator (220) to generate the control signals such that, when the current exceeds the threshold, the switched mode power supply (200) operates in the continuous conduction mode and, upon determining that the current has fallen to or below the threshold, operation of the switched mode power supply (200) is changed from the continuous conduction mode to the pulse skipping mode so that the pulse skipping mode is entered from the continuous conduction mode.
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公开(公告)号：IN8907DEN2014A
公开(公告)日：2015-05-22
申请号：IN8907DEN2014
申请日：2014-10-24
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON MAGNUS , PERSSON OSCAR
IPC: H02M3/335
Abstract: A control circuit (200) operable to generate a control signal (D) to control the duty cycle of a switched mode power supply (100). The control circuit (200) comprises a. reference signal generator (210) operable to receive a signal indicative of an input voltage (V) of the switched mode power supply (100) and generate a reference signal (V) that is a function of the input voltage (V) and an offset reference signal generator (220) operable to generate an offset reference signal (V) 'by combining the reference signal (V) with an offset signal (V) the offset signal (v) being independent of the input voltage (V) The control circuit (200) further comprises an error signal generator (230) arranged to receive a signal indicative of an output voltage (V) of the switched mode power supply (100) and operable to generate an error signal (V) based on the offset reference signal (V) and based on the output voltage (V). The control circuit (200) also includes a duty cycle control signal generator (250) operable to generate the control signal (D) to control the duty cycle of the switched mode power supply (100) in dependence upon the error signal (V)
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