A system is disclosed herein. The system includes a splitter board. The splitter board includes a microprocessor, a converter, and a bypass relay. The converter includes analog-to-digital circuitry and digital-to-analog circuitry. The bypass relay is configurable between a first state and a second state. In the first state, the bypass relay is configured to direct an input signal to the converter. The converter converts the input signal to a converted input signal and splits the converted input signal into a first portion and a second portion. The first portion is directed to the microprocessor. The second portion is directed to an output port of the splitter board for downstream processes. In the second state, the bypass relay is configured to cause the input signal to bypass the converter. The bypass relay directs the input signal to the output port of the splitter board for the downstream processes.

A system is disclosed herein. The system includes a splitter board. The splitter board includes a microprocessor, a converter, and a bypass relay. The converter includes analog-to-digital circuitry and digital-to-analog circuitry. The bypass relay is configurable between a first state and a second state. In the first state, the bypass relay is configured to direct an input signal to the converter. The converter converts the input signal to a converted input signal and splits the converted input signal into a first portion and a second portion. The first portion is directed to the microprocessor. The second portion is directed to an output port of the splitter board for downstream processes. In the second state, the bypass relay is configured to cause the input signal to bypass the converter. The bypass relay directs the input signal to the output port of the splitter board for the downstream processes.

The present disclosure discloses an on-board starting power supply detachably installed in a vehicle. The on-board starting power supply includes: an energy storage module configured to store electrical energy; a first output interface electrically coupled to the energy storage module and a starting device of the vehicle; and a plurality of second output interfaces respectively electrically coupled to the energy storage module and a variety of electrical equipments. The energy storage module is configured to output an instantaneous large current for the starting device through the first output interface to start the starting device and output a corresponding working voltage to a corresponding electrical equipment through the plurality of second output interfaces. The present disclosure can not only start the vehicle, but also includes a plurality of second output interfaces that can be coupled to a variety of electrical equipments, thereby improving a versatility of the on-board starting power supply.

The present disclosure discloses an on-board starting power supply detachably installed in a vehicle. The on-board starting power supply includes: an energy storage module configured to store electrical energy; a first output interface electrically coupled to the energy storage module and a starting device of the vehicle; and a plurality of second output interfaces respectively electrically coupled to the energy storage module and a variety of electrical equipments. The energy storage module is configured to output an instantaneous large current for the starting device through the first output interface to start the starting device and output a corresponding working voltage to a corresponding electrical equipment through the plurality of second output interfaces. The present disclosure can not only start the vehicle, but also includes a plurality of second output interfaces that can be coupled to a variety of electrical equipments, thereby improving a versatility of the on-board starting power supply.

Method for monitoring and controlling current distribution in load circuits of an installation control system of a technical installation, wherein a predetermined and constant output voltage is provided by a clocked power supply and distributed to the load circuits, where load circuits are protected by a switch actuated by a controller, a variation of the current in each load circuit is measured during a learning phase, a significant current profile with an associated tolerance range is derived and associated with the respective load circuit from the measured current variation which is continuously monitored by the control unit and a check is performed to determine whether a power capacity limit is reached by the clocked power supply while operate the installation, and the current consumed load circuits is reduced and/or switched off by actuating switches in load circuits in which a current variation exceeds an upper limit of the tolerance range.

Method for monitoring and controlling current distribution in load circuits of an installation control system of a technical installation, wherein a predetermined and constant output voltage is provided by a clocked power supply and distributed to the load circuits, where load circuits are protected by a switch actuated by a controller, a variation of the current in each load circuit is measured during a learning phase, a significant current profile with an associated tolerance range is derived and associated with the respective load circuit from the measured current variation which is continuously monitored by the control unit and a check is performed to determine whether a power capacity limit is reached by the clocked power supply while operate the installation, and the current consumed load circuits is reduced and/or switched off by actuating switches in load circuits in which a current variation exceeds an upper limit of the tolerance range.

A three-output DC voltage supply for providing a positive, an intermediate, and a negative voltage supply is provided which includes a positive DC voltage bus and a negative DC voltage bus configured to be connected to a DC power source, a first voltage divider connected between the positive DC voltage bus and the negative DC voltage bus, wherein the first voltage divider includes a voltage-setting component and a resistive component, and a short-circuit protection component including first and second transistors of opposite types connected between the voltage-setting component and the resistive component, wherein a base of the first transistor is connected to a collector of the second transistor to define a first base/collector node, a base of the second transistor is connected to a collector of the first transistor to define a second base/collector node, and the intermediate voltage supply is provided by either the first or second gate/collector nodes.

A photovoltaic assembly turnoff device, and a photovoltaic system. The rapid turnoff method includes: after receiving a start signal, a photovoltaic assembly turnoff device controls itself to be turned on, so that a photovoltaic assembly connected thereto achieves electric energy output; then, the photovoltaic assembly turnoff device can measure a state parameter thereof to determine whether a corresponding inverter channel in a photovoltaic system has a fault; if the corresponding inverter channel in the photovoltaic system has the fault, control the photovoltaic assembly turnoff device to be turned off, so that the photovoltaic assembly connected thereto stops the electric energy output; if the corresponding inverter channel in the photovoltaic system has no fault, always keep the photovoltaic assembly turnoff device to be turned on.

A photovoltaic assembly turnoff device, and a photovoltaic system. The rapid turnoff method includes: after receiving a start signal, a photovoltaic assembly turnoff device controls itself to be turned on, so that a photovoltaic assembly connected thereto achieves electric energy output; then, the photovoltaic assembly turnoff device can measure a state parameter thereof to determine whether a corresponding inverter channel in a photovoltaic system has a fault; if the corresponding inverter channel in the photovoltaic system has the fault, control the photovoltaic assembly turnoff device to be turned off, so that the photovoltaic assembly connected thereto stops the electric energy output; if the corresponding inverter channel in the photovoltaic system has no fault, always keep the photovoltaic assembly turnoff device to be turned on.

A method and apparatus for arranging fuses in a printed circuit board includes a power input configured to connect to a power source, at least one electrical component connected to the power input, a first output connected to the at least one electrical component and configured to connect to a load, and a fuse disposed between the at least one electrical component and the first output, and having a first trip rating.