公开(公告)号：US09991807B2

公开(公告)日：2018-06-05

申请号：US14916086

申请日：2014-05-07

Applicant: ZTE CORPORATION

Inventor： Fengfu Du ,  Jie Fan ,  Yaoguang Gao

IPC: H02M3/335 ,  H02M7/217

CPC classification number: H02M3/33546 ,  H02M3/33592 ,  H02M7/217 ,  Y02B70/1475

Abstract: Provided is apparatus and a method for driving synchronous rectifiers, which relate to the field of power supplies for communications. The apparatus includes: detection circuits, wherein each of the detection circuits is configured to detect drain and source voltages of one of synchronous rectifiers to obtain a detection signal for indicating a current direction in the one of the synchronous rectifiers; an isolated driving circuit, configured to generate isolated driving signals for driving the synchronous rectifiers according to the detection signals output by the detection circuits; and the synchronous rectifiers, configured to synchronously rectify input signals from a main transformer by using the isolated driving signals. The present disclosure can obtain the isolated driving signals of the synchronous rectifiers simply and effectively, and has a superior protective feature in case of shoot-through and other abnormalities.

公开(公告)号：US20160218532A1

公开(公告)日：2016-07-28

申请号：US15024913

申请日：2014-06-17

Applicant: ZTE CORPORATION

Inventor： Chen Liu ,  Chuan He ,  Jianping Zhou ,  Yong Luo ,  Jie Fan

IPC: H02J7/00

CPC classification number: H02J7/0029 ,  H02J7/0052 ,  H02J50/10 ,  H02J2007/0037 ,  H02J2007/0059

Abstract: The present disclosure discloses a circuit protection method. The method includes that: a voltage or a current sent by a sending end is received, and a received voltage value or current value is sampled; when it is detected that the sampled voltage value or current value is in a first pre-set threshold range, a pre-set input control switch is controlled to be turned on, and the input of a voltage or a current of the sending end is received; the received voltage or current is converted, and a voltage value of the processed voltage or a current value of the processed current is sampled; and when it is detected that the processed voltage value or current value is in a second pre-set threshold range, a pre-set output control switch is controlled to be turned on, and the processed voltage or current is allowed to be outputted. The present disclosure also discloses a circuit protection apparatus, a charging device and a computer storage medium.

Abstract translation: 本公开公开了一种电路保护方法。 该方法包括：接收由发送端发送的电压或电流，对接收到的电压值或电流值进行采样; 当检测到采样电压值或当前值处于第一预设阈值范围时，预设输入控制开关被控制为导通，并且发送端的电压或电流的输入为 收到 接收的电压或电流被转换，并且对经处理电压的电压值或处理电流的电流值进行采样; 并且当检测到处理后的电压值或当前值处于第二预设阈值范围时，预设输出控制开关被控制为导通，并且允许输出处理的电压或电流。 本公开还公开了一种电路保护装置，充电装置和计算机存储介质。

公开(公告)号：US10284093B2

公开(公告)日：2019-05-07

申请号：US15739442

申请日：2015-10-30

Applicant: ZTE CORPORATION

Inventor： Jie Fan ,  Jianping Zhou ,  Guoxian Lin

IPC: H02M3/158 ,  H02M1/42 ,  H02M7/219 ,  H02M7/21

Abstract: The present disclosure discloses a power conversion apparatus and a method for configuring the same. The power conversion apparatus includes a boost unit and at least two power conversion units; each of the power conversion units has two input ends; an input end of the boost unit is connected with one end of an alternating-current power supply, and an output end of the boost unit is connected with one input end of a first power conversion unit of the plurality of power conversion units; one input end of a last power conversion unit of the plurality of power conversion units is connected with the other end of the alternating-current power supply; and the input ends of the plurality of power conversion units are connected in series, and the output ends of the plurality of power conversion units are connected in parallel.

公开(公告)号：US10126148B2

公开(公告)日：2018-11-13

申请号：US15022620

申请日：2014-06-17

Applicant: ZTE Corporation

Inventor： Beibei Qiu ,  Wei Liu ,  Yong Luo ,  Jianping Zhou ,  Jie Fan

IPC: G01D5/20 ,  H02J17/00 ,  H02J5/00 ,  G01R25/00 ,  G01R31/42 ,  H02J50/90 ,  H02J50/10 ,  H02J7/00

Abstract: Disclosed is a detection method, a detection device and a computer storage medium for a non-contact transformer. The method includes that: a circuit parameter is acquired; the acquired circuit parameter is compared with a pre-stored circuit parameter corresponding to known air gap and dislocation distance information; and air gap and dislocation distance information of the non-contact transformer in a wireless energy transmission system are determined according to a comparison result.

公开(公告)号：US10044284B2

公开(公告)日：2018-08-07

申请号：US15578255

申请日：2015-10-26

Applicant: ZTE CORPORATION

Inventor： Qia Wang ,  Jie Fan ,  Hongjin Liu ,  Guoxian Lin ,  Fengfu Du ,  Xiufeng Dong ,  Jianping Zhou

IPC: H02M7/219 ,  H02M3/335 ,  H02M1/32 ,  H02M1/088 ,  H02M1/00

Abstract: A synchronous rectifier driving method, a synchronous rectifier circuit and a switching power supply are provided, and the method includes: detecting an output current in a secondary winding of a transformer unit, and generating a first driving signal according to the output current; obtaining a protection signal according to a voltage signal of the secondary winding of the transformer unit in a synchronous rectifier circuit; correcting the first driving signal by using the obtained protection signal to obtain a second driving signal; and driving a rectifier in the synchronous rectifier circuit according to the second driving signal.

公开(公告)号：US10020663B2

公开(公告)日：2018-07-10

申请号：US15024913

申请日：2014-06-17

Applicant: ZTE Corporation

Inventor： Chen Liu ,  Chuan He ,  Jianping Zhou ,  Yong Luo ,  Jie Fan

IPC: H02J7/00 ,  H02J50/10

CPC classification number: H02J7/0029 ,  H02J7/0052 ,  H02J50/10 ,  H02J2007/0037 ,  H02J2007/0059

Abstract: The present disclosure discloses a circuit protection method. The method includes that: a voltage or a current sent by a sending end of a circuit protection apparatus is received, and a voltage value of the received voltage or a current value of the received current is sampled; when it is detected that the sampled voltage value or current value is in a first pre-set threshold range, a pre-set input control switch is controlled to be turned on, and an input of a voltage or a current of the sending end is received; the received voltage or the received current is converted and processed, and a voltage value of the processed received voltage or a current value of the processed received current is sampled; and when it is detected that the processed voltage value or the processed current value is in a second pre-set threshold range, a pre-set output control switch is controlled to be turned on, and the processed received voltage or the processed received current is allowed to be outputted. The present disclosure also discloses a circuit protection apparatus, a charging device and a computer storage medium.

公开(公告)号：US20160238411A1

公开(公告)日：2016-08-18

申请号：US15022620

申请日：2014-06-17

Applicant: ZTE CORPORATION

Inventor： Beibei Qiu ,  Wei Liu ,  Yong Luo ,  Jianping Zhou ,  Jie Fan

IPC: G01D5/20 ,  H02J50/10

CPC classification number: G01D5/204 ,  G01R25/00 ,  G01R31/42 ,  H02J5/005 ,  H02J17/00 ,  H02J50/10 ,  H02J50/90

Abstract: Disclosed is a detection method, a detection device and a computer storage medium for a non-contact transformer. The method includes that: a circuit parameter is acquired; the acquired circuit parameter is compared with a pre-stored circuit parameter corresponding to known air gap and dislocation distance information; and air gap and dislocation distance information of the non-contact transformer in a wireless energy transmission system are determined according to a comparison result.

Abstract translation: 本发明公开了一种用于非接触式变压器的检测方法，检测装置和计算机存储介质。 该方法包括：获取电路参数; 将获取的电路参数与对应于已知气隙和位错距离信息的预存电路参数进行比较; 根据比较结果确定无线能量传输系统中的非接触式变压器的气隙和位移距离信息。

公开(公告)号：US20160226318A1

公开(公告)日：2016-08-04

申请号：US15024364

申请日：2014-06-18

Applicant: ZTE CORPORATION

Inventor： Jing Wang ,  Yaoguang Gao ,  Jie Fan ,  Yong Luo ,  Jianping Zhou

IPC: H02J50/90 ,  H02J50/10

CPC classification number: H02J50/90 ,  H02J5/005 ,  H02J17/00 ,  H02J50/10 ,  H02J50/80

Abstract: Disclosed are a regulating method and system for a contactless transformer, applied to a regulating system including a contactless transformer and a detecting device (2), wherein the contactless transformer includes a transmitting end (11) and a receiving end (12), and the method includes: using the detecting device (2) to detect power transmission parameter information between a transmitting coil (111) and a receiving coil (121) of the contactless transformer, and a transmitting end controller (113) regulating operating parameters of a power transmitting end circuit (112) based on the power transmission parameter information; a receiving end controller (123) regulating operating parameters of a power receiving end circuit (122) based on the power transmission parameter information.

Abstract translation: 公开了一种应用于包括非接触变压器和检测装置（2）的调节系统的非接触式变压器的调节方法和系统，其中非接触式变压器包括发射端（11）和接收端（12），并且 方法包括：使用检测装置（2）检测非接触变压器的发送线圈（111）和接收线圈（121）之间的功率传输参数信息，以及发送端控制器（113），其调节功率传输的操作参数 终端电路（112）; 基于所述功率传输参数信息来调节受电端电路（122）的工作参数的接收端控制器（123）。

公开(公告)号：US10330711B2

公开(公告)日：2019-06-25

申请号：US15305104

申请日：2014-10-28

Applicant: ZTE CORPORATION

Inventor： Tao Liu ,  Jianping Zhou ,  Guoxian Lin ,  Jie Fan ,  Yong Luo

IPC: G01R19/25 ,  H02M1/42 ,  H02H7/12 ,  G01R15/18 ,  G01R19/00 ,  H02M1/00

Abstract: A method and device for detecting inductor current of a PFC circuit are disclosed, which relates to the field of power supply technology. The method includes: detecting a voltage on a boost inductor of a critical-conduction mode PFC circuit, and obtaining an inductor voltage detection signal (S1); converting the inductor voltage detection signal into a voltage signal whose waveform is consistent with a current waveform of the inductor to serve as an inductor current detection signal, to perform loop protection on the PFC circuit or perform over-current protection on the PFC circuit by using the inductor current detection signal (S2).

公开(公告)号：US09577512B2

公开(公告)日：2017-02-21

申请号：US14896668

申请日：2014-04-25

Applicant: ZTE CORPORATION

Inventor： Jing Wang ,  Junming Zhang ,  Jie Fan ,  Jianping Zhou

IPC: H02M1/42 ,  G01R19/175 ,  H02M7/219 ,  H02M1/00

CPC classification number: H02M1/42 ,  G01R19/175 ,  H02M1/4233 ,  H02M7/219 ,  H02M2001/0009 ,  Y02B70/126 ,  Y02P80/112

Abstract: Disclosed are a current zero-cross detection device, zero-cross current signal acquisition circuit and totem pole bridgeless circuit system. The current zero-cross detection device includes a current transformer, first sampling switch, second sampling switch, sampling resister, comparator. The current transformer includes a primary winding and a secondary winding; the primary winding is connected to a circuit to be detected; two ends of the secondary winding are connected respectively to drain electrodes of the first and second sampling switches; source electrodes of first and second sampling switches are connected to ground; two ends of the sampling resistor are connected respectively to the drain electrode and source electrode of the second sampling switch; the negative input end of the comparator is connected to the drain electrode of the second sampling switch, its positive input end is connected to a reference voltage; the first and second sampling switches are in ON or OFF state.

Abstract translation: 公开了目前的零交叉检测装置，零交叉电流信号采集电路和图腾柱无桥电路系统。 目前的零交叉检测装置包括电流互感器，第一采样开关，第二采样开关，采样电阻，比较器。 电流互感器包括初级绕组和次级绕组; 初级绕组连接到要检测的电路; 次级绕组的两端分别连接到第一和第二采样开关的漏电极; 第一和第二采样开关的源电极连接到地; 采样电阻的两端分别连接到第二采样开关的漏电极和源极; 比较器的负输入端连接到第二采样开关的漏电极，其正输入端连接到参考电压; 第一和第二采样开关处于ON或OFF状态。