公开(公告)号：WO2013017050A1

公开(公告)日：2013-02-07

申请号：PCT/CN2012/079294

申请日：2012-07-27

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED ,  WANG, Wenqing ,  YANG, Xiaohua ,  YU, Chuntian ,  FENG, Yuming

Inventor： WANG, Wenqing ,  YANG, Xiaohua ,  YU, Chuntian ,  FENG, Yuming

IPC: H02M7/217

CPC classification number: H02M3/33507 ,  H02M3/33523 ,  H02M2001/0003 ,  H02M2001/0035 ,  Y02B70/16

Abstract: A control IC of a switch power supply, connected with a switch of the switch power supply, comprises: a voltage collecting module (112), configured to collect a feedback voltage of an output voltage of the switch power supply; an error amplifying module (113), configured to compare the feedback voltage and a reference voltage and output a error voltage; a time collecting module (114), configured to obtain a degaussing time signal according to the feedback voltage, and a control module (115), configured to collect a peak current feedback signal of the switch, control a frequency and duty ratio of a control signal according to the error voltage (VEA), the degaussing time signal (Tds) and the peak current feedback signal (CS), and control the switch according to the control signal. A switch power supply is also provided.

Abstract translation: 与开关电源的开关连接的开关电源的控制IC包括：电压收集模块（112），被配置为收集开关电源的输出电压的反馈电压; 误差放大模块（113），被配置为比较所述反馈电压和参考电压并输出误差电压; 时间采集模块（114），被配置为根据所述反馈电压获得消磁时间信号;以及控制模块（115），被配置为收集所述开关的峰值电流反馈信号，控制所述开关的频率和占空比 根据误差电压（VEA），消磁时间信号（Tds）和峰值电流反馈信号（CS）的信号，根据控制信号控制开关。 还提供开关电源。

公开(公告)号：WO2017088799A1

公开(公告)日：2017-06-01

申请号：PCT/CN2016/107136

申请日：2016-11-24

Applicant: BYD COMPANY LIMITED

Inventor： HOU, Yongjun ,  WANG, Wenqing

IPC: H02H7/125

CPC classification number: H02H7/1225 ,  H02H7/1216 ,  H02M1/32 ,  H02M3/33507 ,  H02M7/217

Abstract: The present disclosure provides a control apparatus of a switch-mode power supply and a switch-mode power supply. In the control apparatus of the present disclosure, a short-circuit protection module is set, and when a switching transistor of the switch-mode power supply is turned on, and the short-circuit protection module detects that a voltage across a current sensing resistor of the switch-mode power supply is less than a predetermined value within a predetermined period, that is, the current sensing resistor is short-circuited, the short-circuit protection module generates a short-circuit protection signal, and a driving controller controls the switching transistor to turn off according to the protection signal, thereby switching off the control apparatus, preventing breakdown of the switch-mode power supply, and avoiding erroneous protection.

Abstract translation: 本公开提供了一种开关模式电源和开关模式电源的控制装置。 在本发明的控制装置中，设置有短路保护模块，当开关电源的开关晶体管导通时，短路保护模块检测到电流检测电阻两端的电压 在预定时间内开关电源的电压小于预定值，即电流采样电阻短路，短路保护模块产生短路保护信号，驱动控制器控制 开关晶体管根据保护信号关断，从而关闭控制装置，防止开关电源的故障，并避免错误的保护。

公开(公告)号：WO2016045566A1

公开(公告)日：2016-03-31

申请号：PCT/CN2015/090149

申请日：2015-09-21

Applicant: BYD COMPANY LIMITED

Inventor： JIANG, Xingfu ,  WANG, Wenqing

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  Y02B20/346

Abstract: A driving apparatus (100) for an LED lamp and an LED are provided. The apparatus (100) includes: an input module (10) connected with a power switch (101); a transferring module (20) connected with the input module (10) and LED lamp (103) respectively; a feedback module (30) connected with the transferring module (20) and input module (10) respectively; an energy storage module (40); and a driving chip (50) connected with the input module (10), transferring module (20), feedback module (30) and energy storage module (40) respectively. This apparatus (100) uses the brightness of the LED lamp (103) when the power switch (101) is turned off for the first time as a working brightness when the power switch (101) is turned on for the second time and when determining that a voltage of the DC electricity inputted to the driving chip (50) at a predetermined position meets a predetermined condition.

Abstract translation: 提供了一种用于LED灯和LED的驱动装置（100）。 所述设备（100）包括：与电源开关（101）连接的输入模块（10）; 与所述输入模块（10）和LED灯（103）分别连接的传送模块（20） 分别与所述传送模块（20）和输入模块（10）连接的反馈模块（30） 能量存储模块（40）; 以及分别与输入模块（10），传输模块（20），反馈模块（30）和能量存储模块（40）连接的驱动芯片（50）。 当电源开关（101）第二次接通时，当电源开关（101）第一次关闭时，该设备（100）使用LED灯（103）的亮度作为工作亮度，并且当确定 在预定位置处输入到驱动芯片（50）的DC电压的电压达到预定条件。

公开(公告)号：WO2016015672A1

公开(公告)日：2016-02-04

申请号：PCT/CN2015/085617

申请日：2015-07-30

Applicant: BYD COMPANY LIMITED

Inventor： HOU, Yongjun ,  WANG, Wenqing

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  Y02B20/347

Abstract: A control circuit (1001) for starting an LED lamp and an LED lighting system are provided. The control circuit (1001) for starting an LED lamp includes: an input module (1), configured to receive an input alternate current and to convert the input alternate current into a direct current; a driving module (2), connected with the input module and configured to generate a driving current for driving the LED lamp (5) according to the direct current; a feedback module (3), connected with the driving module (2) and configured to generate a feedback signal according to the driving current; and a driving chip (4), connected with the driving module (2) and the feedback module (3) respectively, and configured to obtain a starting state of the LED lamp (5) and to adjust the driving current according to the starting state of the LED lamp (5) and the feedback signal so as to control the LED lamp (5) to start.

Abstract translation: 提供了一种用于启动LED灯和LED照明系统的控制电路（1001）。 用于启动LED灯的控制电路（1001）包括：输入模块（1），被配置为接收输入交流电流并将输入的交流电转换成直流电; 驱动模块（2），与所述输入模块连接并被配置为根据所述直流产生用于驱动所述LED灯（5）的驱动电流; 反馈模块（3），与所述驱动模块（2）连接并被配置为根据所述驱动电流产生反馈信号; 以及分别与驱动模块（2）和反馈模块（3）连接的驱动芯片（4），并被配置为获得LED灯（5）的启动状态，并根据起始状态来调节驱动电流 的LED灯（5）和反馈信号，以控制LED灯（5）的启动。

公开(公告)号：WO2014012518A1

公开(公告)日：2014-01-23

申请号：PCT/CN2013/079706

申请日：2013-07-19

Applicant: SHENZHEN BYD AUTO R & D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： ZHANG, Haiquan ,  WANG, Wenqing ,  YANG, Xiaohua

IPC: H02M7/04

CPC classification number: H02M1/36 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A switching power supply and a chip for controlling the same are provided. The switching power supply comprises: a rectifying module (301); a transforming module (302); a switching module (303), connected with the transforming module (302); a chip (304) for controlling the switching power supply, connected with the transforming module (302) and the switching module (303) respectively, in which the chip (304) has a control terminal (COMP), a compensation module (406) and a power supply terminal (VDD), the control terminal is configured to output a turn off signal and to start the compensation module after being started and the compensation module is configured to stabilize and filter a voltage inside the chip (304) and to compensate the output voltage by controlling the switching module to turn on or off according to an output voltage of the transforming module; a starting resistor (R1); a first capacitor (C1); and a first MOS transistor (M1). With the switching power supply, the stand-by consumption is reduced without reducing the starting speed of the chip for controlling the switching power supply. Furthermore, as the number of the external elements is reduced, the size of the switching power supply is reduced and the cost is also decreased.

Abstract translation: 提供了开关电源和用于控制开关电源的芯片。 开关电源包括：整流模块（301）; 变换模块（302）; 与所述变换模块（302）连接的开关模块（303）; 与芯片（304）分别具有控制端（COMP）的变换模块（302）和转换模块（303）连接的用于控制开关电源的芯片（304），补偿模块（406） 和电源端子（VDD），所述控制端子被配置为输出关闭信号并且在启动之后启动所述补偿模块，并且所述补偿模块被配置为稳定和滤波所述芯片（304）内部的电压并且补偿 所述输出电压通过根据所述变换模块的输出电压控制所述开关模块的导通或截止; 启动电阻（R1）; 第一电容器（C1）; 和第一MOS晶体管（M1）。 利用开关电源，可以降低待机消耗而不降低用于控制开关电源的芯片的启动速度。 此外，随着外部元件的数量减少，开关电源的尺寸减小，成本也降低。

公开(公告)号：EP2737617A1

公开(公告)日：2014-06-04

申请号：EP12819890.0

申请日：2012-07-27

Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

Inventor： WANG, Wenqing ,  YANG, Xiaohua ,  YU, Chuntian ,  FENG, Yuming

IPC: H02M7/217

CPC classification number: H02M3/33507 ,  H02M3/33523 ,  H02M2001/0003 ,  H02M2001/0035 ,  Y02B70/16

Abstract: A control IC of a switch power supply, connected with a switch of the switch power supply, comprises: a voltage collecting module (112), configured to collect a feedback voltage of an output voltage of the switch power supply; an error amplifying module (113), configured to compare the feedback voltage and a reference voltage and output a error voltage; a time collecting module (114), configured to obtain a degaussing time signal according to the feedback voltage, and a control module (115), configured to collect a peak current feedback signal of the switch, control a frequency and duty ratio of a control signal according to the error voltage (VEA), the degaussing time signal (Tds) and the peak current feedback signal (CS), and control the switch according to the control signal. A switch power supply is also provided.

公开(公告)号：EP3349342A1

公开(公告)日：2018-07-18

申请号：EP16843622.8

申请日：2016-09-05

Applicant: BYD Company Limited

Inventor： WANG, Wenqing ,  HOU, Yongjun

IPC: H02M1/14

CPC classification number: H02M1/14 ,  H02M1/08 ,  H02M1/4258 ,  H02M3/156 ,  H02M2001/0025 ,  Y02B70/126

Abstract: The invention discloses a switching power supply, a primary control chip and a loop compensation device thereof. The loop compensation device comprises: an error amplifier; a switching logic gate, wherein the input end of the switching logic gate is connected with the output end of the error amplifier; a loop compensation capacitor, wherein one end of the loop compensation capacitor is connected with the output end of the switching logic gate, and the other end of the loop compensation capacitor is grounded; and a delay generation circuit, wherein the output end of the delay generation circuit is connected with the control end of the switching logic gate, and the delay generation circuit is used for outputting a valid switching control signal within a preset time after a power switch of the switching power supply is turned off to control the switching logic gate in a turn-on state, so that the loop compensation capacitor is charged/discharged by means of an error amplification signal outputted from the error amplifier. With the loop compensation device, the problem that the output ripple from the switching power supply is too large can be solved, and the loop stability is ensured.

公开(公告)号：EP2737617B1

公开(公告)日：2018-06-13

申请号：EP12819890.0

申请日：2012-07-27

Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

Inventor： WANG, Wenqing ,  YANG, Xiaohua ,  YU, Chuntian ,  FENG, Yuming

IPC: H02M7/217 ,  H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/33523 ,  H02M2001/0003 ,  H02M2001/0035 ,  Y02B70/16

Abstract: A control integrated circuit for controlling a switch power supply, including: a voltage collecting module, configured to collect a feedback voltage based on an output voltage of the switch power supply; an error amplifying module, configured to compare the feedback voltage with a reference voltage and generate an error voltage; a time collecting module, configured to obtain a degaussing time signal based on the feedback voltage; and a constant voltage and current module, configured to collect a peak current feedback signal of a switch transistor, generate a control signal based on the error voltage, the degaussing time signal and the peak current feedback signal, wherein the control signal is for controlling an operating frequency and a duty ratio of the switch transistor, and control the switch transistor according to the control signal.

公开(公告)号：EP3381099A1

公开(公告)日：2018-10-03

申请号：EP16868022.1

申请日：2016-11-24

Applicant: BYD Company Limited

Inventor： HOU, Yongjun ,  WANG, Wenqing

IPC: H02H7/125 ,  H02M7/217 ,  H02M1/32 ,  H02H7/122 ,  H02H7/12 ,  H02M3/335

CPC classification number: H02H7/1225 ,  H02H7/1216 ,  H02M1/32 ,  H02M3/156 ,  H02M3/33507 ,  H02M7/217

Abstract: The present disclosure provides a control apparatus of a switch-mode power supply and a switch-mode power supply. In the control apparatus of the present disclosure, a short-circuit protection module is set, and when a switching transistor of the switch-mode power supply is turned on, and the short-circuit protection module detects that a voltage across a current sensing resistor of the switch-mode power supply is less than a predetermined value within a predetermined period, that is, the current sensing resistor is short-circuited, the short-circuit protection module generates a short-circuit protection signal, and a driving controller controls the switching transistor to turn off according to the protection signal, thereby switching off the control apparatus, preventing breakdown of the switch-mode power supply, and avoiding erroneous protection.