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：WO2015090236A1

公开(公告)日：2015-06-25

申请号：PCT/CN2014/094446

申请日：2014-12-19

Applicant: BYD COMPANY LIMITED

Inventor： HOU, Yongjun ,  YE, Wenhui ,  ZHANG, Haiquan

IPC: H02M3/335

CPC classification number: H02M3/33523 ,  H02M1/08 ,  H02M3/335 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An integrated circuit (10) for controlling a switch power supply includes: a primary feedback terminal (101), a primary feedback sampling module (100), an error amplifying module (200), a first control module (300), a secondary control module (400), a secondary feedback terminal (401), a second control module (500), and a driving module (600). The second control module (500) is connected with the first control module (300) and the secondary control module (400) respectively and is configured to generate a logic control signal according to the constant voltage control signal or according to the secondary control signal and the constant voltage control signal. The driving module (600) is connected with the second control module (500) and is configured to generate a driving signal according to the logic control signal and output the driving signal.

Abstract translation: 一种用于控制开关电源的集成电路（10）包括：主反馈端（101），主反馈采样模块（100），误差放大模块（200），第一控制模块（300） 模块（400），次级反馈终端（401），第二控制模块（500）和驱动模块（600）。 第二控制模块（500）分别与第一控制模块（300）和辅助控制模块（400）连接，并且被配置为根据恒定电压控制信号或根据次级控制信号产生逻辑控制信号，以及 恒压控制信号。 驱动模块（600）与第二控制模块（500）连接，并且被配置为根据逻辑控制信号产生驱动信号并输出​​驱动信号。

公开(公告)号：WO2016045628A1

公开(公告)日：2016-03-31

申请号：PCT/CN2015/090805

申请日：2015-09-25

Applicant: BYD COMPANY LIMITED

Inventor： YE, Wenhui ,  HOU, Yongjun ,  ZHANG, Haiquan

IPC: H02M3/335

CPC classification number: H02J7/022 ,  H02J7/045 ,  H02M3/33592 ,  Y02B40/90 ,  Y02B70/1475

Abstract: A secondary control device and a charging system are provided. The secondary control device is connected with a transformer having a secondary winding connected with a charging interface, and includes: a secondary rectifier switch connected with the secondary winding; a secondary synchronous rectifier chip connected with the secondary winding and the secondary rectifier switch, and configured to detect a voltage between two terminals of the secondary rectifier switch, to control the secondary rectifier switch to turn on or turn off according to the voltage, to control the secondary rectifier switch to turn on again when the secondary rectifier switch is in an off-state so as to control the secondary winding to generate a mutation voltage, to obtain a transmission signal on the charging interface, and to control a driving voltage of the secondary rectifier switch according to the transmission signal so as to adjust the mutation voltage.

Abstract translation: 提供二次控制装置和充电系统。 二次控制装置与具有与充电接口连接的次级绕组的变压器连接，并且包括：与次级绕组连接的次级整流开关; 与次级绕组和次级整流开关连接的次级同步整流器芯片，并且被配置为检测次级整流器开关的两个端子之间的电压，以根据电压来控制次级整流器开关导通或关断，以控制 次级整流开关在二次整流开关处于截止状态时再次接通，以控制次级绕组产生突变电压，从而在充电接口上获得发送信号，并控制 二次整流开关根据传输信号调整突变电压。

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：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：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.