A fluid connector for coolant includes a chamfered lip and a fir tree circumferentially aligned with at least one O-ring on an outer body of the fluid connector. The fluid connector is configured to receive an end piece. The end piece has a standard SAEJ2044 end form. The fluid connector utilizes a housing to form a ribbing and support a seal. An integrated inverter assembly includes a main cover and an opposing back cover; a coolant channel disposed between a coolant channel cover and a coolant channel separating body; wherein power electronics of the integrated inverter assembly are thermally coupled to the coolant channel; wherein at least one of a coolant inlet or a coolant outlet of the coolant channel comprises a fluid connector; and wherein the fluid connector comprises a chamfered lip on an end of the fluid connector.

A system for detecting overloads of a motor comprises a motor configured to receive power via a lead line, a first sensing device configured to sense a temperature of a motor, and a second sensing device electrically coupled to the motor and configured to detect a target current of the motor and trigger a contact of the lead line associated with second sensing device when the target current equals or exceeds a trip value.

A connector component is disclosed. The connector may include an electrically-conductive clamp element configured to clamp a contact element to a surface element. The surface element may be electrically-conductive and may be inserted into the clamp element using a recess in a lateral edge of the surface element to provide additional surface area for an electrical connection. The clamp element may be a lamella contact. The surface element may be at least one contact blade. The clamp element may include two laterally-spaced clamp elements. The connector component may also include a contact element that is inserted into the two clamp elements.

An apparatus includes a current sense resistor configured to receive a supply current for one or more devices. The apparatus also includes a current sense amplifier configured to amplify a voltage across the current sense resistor. The apparatus further includes a comparator configured to compare the amplified voltage from the current sense amplifier to a reference voltage. In addition, the apparatus includes an octal driver configured to receive the supply current from the current sense resistor and to control one or more device outputs associated with the one or more devices. The apparatus may also include an optocoupler configured to receive an output from the comparator and, based on the output, control an output enable pin of the octal driver. There could be multiple resistors, amplifiers, comparators, drivers, and optocouplers arranged in multiple circuit branches, which could be configured to control multiple device outputs associated with different groups of devices.

A primary current threshold is fit between an electrical capacity and electrical load for an electrical distribution component. When a first measured current exceeds the primary threshold, a power limit for the battery powering the component is reduced. When a second measured current is less than a secondary current threshold, the power limit is increased. The primary and secondary thresholds may be set for a plurality of time periods.

An integrated circuit that may be employed as a smart switch is described herein. In accordance with one embodiment the integrated circuit includes a power transistor coupled between a supply pin and an output pin and further includes a control circuit configured to trigger a switch-on and a switch-off of the power transistor in accordance with an input signal. The control circuit is configured to trigger a switch-off of the power transistor when a load current passing through the power transistor is at or above a predetermined current and a supply voltage received at the supply pin is at or below a predetermined threshold voltage.

A protective circuit includes a first field-effect transistor having a first drain terminal, a first source terminal and a first gate terminal, a control device by which an electrical first voltage between the first drain terminal and the first source terminal can be determined, and a first temperature sensor by which a first temperature of the first field-effect transistor can be detected, wherein a first resistance of the first field effect transistor and an electrical first current conducted via the first field-effect transistor can be determined by the control device based on the first temperature.

A surge protective device with an independent chamber comprising a fuse for overcurrent protection is disclosed. It comprises a first chamber for receiving a voltage sensitive element with a thermal protection switch, and a second chamber independent from the first chamber and provided in the external of the first chamber. The second chamber contains a fuse for power frequency overcurrent protection in series connection with the voltage sensitive element. The surge protection device comprises an independent chamber for power frequency overcurrent protection at outside of the thermal protection device, so as to avoid interference with the components around the fuse. In addition, when the MOV is unexpectedly punctured and got short circuit, the device of the present invention still operates to protect the surge protective surge.

An emulating device for emulating a bimetallic strip, the emulating device comprising a current sensor capable of measuring a line current (I.sub.P) flowing through the emulating device, the emulating device being capable of providing a value representative of a cumulative thermal state over time t, which value is referred to as cumulative thermal state, by recursively adding a value representative of an initial thermal state, which value is referred to as initial thermal state, and a value representative of a present thermal state, which value is referred to as present thermal state, which is determined on the basis of the line current (I.sub.P).

Provided is a solid state power controller (SSPC). The SSPC comprises a power supply line configured to be connected between a power source and a load. Further, the solid state power controller comprises a semiconductor switching unit provided on the power supply line and configured to switch between at least two states according to a command signal. The at least two states include a conducting state and a non-conducting state. Further the solid state power controller comprises a state machine, which is configured to exhibit at least two states, including an ON state and an OFF state. The state machine is further configured to output the command signal according to a current state of the state machine.