Shenzhen Carku Technology Co., Limited

Jianping Lin

Yun Lei

Zhifeng Zhang

Mingxing Ouyang

Ming Cheng

A switch identification circuit is provided. The switch identification circuit includes a detecting unit, a control unit, a connection unit, a first connection terminal, and a second connection terminal. The detecting unit is coupled with the first connection terminal and the second connection terminal, and configured to detect voltages at the two connection terminals to output a detection signal. The connection unit is electrically coupled with a power-supply device configured to provide a driving voltage to the two connection terminals. The control unit is coupled with the detecting unit and the connection unit, and configured to determine whether the first connection terminal and the second connection terminal are short-circuited according to the detection signal. If the two connection terminals are short-circuited, the control unit is configured to output a connection-enabling signal to the connection unit, to make the connection unit control the power-supply device to stop supplying the driving voltage.

Switch identification circuit and electric device

A switch circuit includes a control unit, a driving unit, a voltage sudden-change unit, and a connection unit. The connection unit is configured to turn on or turn off an electrical connection between a power-supply device and a load. The control unit is configured to control the driving unit to output or stop outputting a driving signal to the connection unit, where the driving signal allows to turn on the connection unit. The voltage sudden-change unit is coupled with a driving node between the driving unit and the connection unit. The control unit is configured to control the voltage sudden-change unit to output a voltage sudden-change signal to the driving node, where the voltage sudden-change signal allows to make the connection unit be switched to a turned-off state from a turned-on state quickly when the driving unit stops outputting the driving signal.

Switch circuit and electric device

The present disclosure provides a smart connection device, a jump starter and a battery clamp. The smart connection device includes a power connection terminal coupled to an energy storage module, a load connection terminal coupled to an external load, a switch element, a power supply loop, and a reverse connection detection module. The reverse connection detection module outputs a first control signal to the power supply loop, when the external load is reversely coupled to the load connection terminal. The power supply loop is in a disconnection state and supplies no power to the switch element when it receives the first control signal. The switch element is in an off state when it receives no power supply, to make the power connection terminal and the load connection terminal be in a disconnection state, thereby preventing the energy storage module from providing a discharge output to the external load.

Smart connection device, jump starter, and battery clamp

The present disclosure provides a smart connection device, a jump starter and a battery clamp. The smart connection device includes a power connection terminal, a load connection terminal, a switch circuit, and a reverse connection detection module. The power connection terminal and the load connection terminal are respectively electrically coupled to the battery assembly and the external load. The reverse connection detection module outputs, when it detects that the external load is reversely coupled to the load connection end, a first control signal to control the switch circuit to disconnect an electrical connection between the battery assembly and the external load, so as to prevent the battery assembly from providing a discharge output to the external load.

Growing community of inventors

Guangdong, China

Jianping Lin