Shenzhen Poweroak Newener Co., Ltd

Jianhua Lei

Xiangzhu Yin

Hui Ma

Geng Qin

Gang Wang

Hua Zhang

Gang Zhang

Yongbo Zhang

Hailong Xie

Wentao Cang

Xianren Li

Zhongping Meng

Yubin Ou

Seyou Lei

Qi Jiang

Yongliang You

Portable power station

A parallel operation connecting device includes a control switch, a concentrator, a first connector and a second connector; the concentrator is connected between an alternating current power supply and the first connector and the second connector to form two identical alternating current lines, and on-off of both the two alternating current lines is controlled by the control switch; the control switch is configured to simultaneously switch on the two alternating current lines when the first connector is connected to the first energy storage inverter and the second connector is connected to the second energy storage inverter and simultaneously switch off the two alternating current lines when the first connector is disconnected from the first energy storage inverter and/or when the second connector is disconnected from the second energy storage inverter.

Connecting device for parallel operation of energy storage inverters

An SOC estimation method includes calculate an electric quantity value of fixed step size for the mobile power supply, and then sequentially superimpose a unit electric quantity step by step to calculate an accumulated electric quantity from the last moment of SOC change, then compare the absolute value of the accumulated electric quantity with the electric quantity value of the fixed step size to determine whether the SOC value is added/subtracted the fixed step size or kept unchanged, and acquire an initial value of the accumulated electric quantity at the next moment. In above method, the division operation can be replaced by 'if judgment' and addition/subtraction operations in actual programming, which greatly reduces the calculation amount for SOC estimation, thereby greatly reducing requirements for chip operational power and peripheral resources and equipment energy consumption, improving the speed and computing stability of SOC estimation.

SOC estimation method, mobile power supply and readable storage medium

Smartglasses

A switch detection circuit includes a controller, a first DC isolation module, a second DC isolation module, and a signal conditioning module connected to the controller. The controller is connected to a first end of an external switch via the first DC isolation module and the signal conditioning module is connected to a second end of the external switch via the second DC isolation module. The controller is configured to output a pulse signal, and transmit the pulse signal to the second DC isolation module via the first DC isolation module and the external switch. As a current flowing out from the second DC isolation module, the signal conditioning module outputs a feedback signal to the controller and the controller counts according to the feedback signal and detects the working state of the external switch according to the count value.

Switch detection circuit, method, and switch detector

A leakage current detection circuit is used for detecting a leakage current, includes a main winding, an auxiliary winding, a detection module and a signal output module used for outputting a pulse signal with pulse signals with positive and negative alternations, wherein the main winding is connected to a leakage current detection end and coupled to the auxiliary winding, and the auxiliary winding is respectively connected to the signal output module and the detection module. During the auxiliary winding in a preset state and a leckage current occurred, the leakage current coupled to the auxiliary winding is superimposed with the pulse signal, so that the current signal detected by the detection module is greater than the current signal detected when the pulse signal with pulse signals with positive and negative alternations is not applied.

Leakage current detection circuit, method and leakage current detector

Portable power supply

Growing community of inventors

Shenzhen, China

Jianhua Lei