A PTC starter is provided. A first pin is electrically connected to a first electrode of a thermistor. The thermistor and an elastic element are arranged in respective mounting cavities. The elastic element is provided with a connecting piece, through which a second pin is electrically connected to or disconnected from a second electrode of the thermistor. In a normal state of the thermistor, the elastic element is in an elastic deformation state, a first contact part and a second contact part of the elastic element are in electrical contact with the second electrode of the thermistor and the second pin respectively. After the thermistor ruptures, the elastic element resets, which causes the connecting piece to move so that the second contact part of the elastic element detaches from the second pin. An isolation structure is provided between the thermistor mounting cavity and the elastic element mounting cavity.

A control device may comprise a passive infrared sensing circuit configured to operate in a charging state to charge one or more capacitors to appropriate voltages for operation in an operational state of the sensing circuit. The sensing circuit may comprise a pyroelectric detector configured to generate an output signal in response to received infrared energy, and first and second amplifier circuits configured to amplify the output signal. The control device may comprise a control circuit coupled to receive a sensing signal from the second amplifier circuit. Prior to the operational state, a capacitor of the first amplifier circuit may charge through a diode coupled between an output and an inverting input of an operational amplifier. In addition, prior to the operational state, a capacitor of the passive infrared sensing circuit may charge through the control circuit until the magnitude of a voltage across the capacitor exceeds a threshold voltage.

The invention provides a surge protector, in particular for information technology and/or communications technology systems, which is equipped with: a housing (ST, BT; GT); a first input terminal (E1) for applying a first external voltage signal; a second input terminal (E2) for applying a second external voltage signal; a first output terminal (A1) for outputting the first external voltage signal; a second output terminal (A2) for outputting the second external voltage signal; a surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2), at least part of which is provided on a circuit board (P) located in the housing (ST, BT; G); a first current path (ST1) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a second current path (ST2) for conducting the second external voltage signal from the second input terminal (E2) to the second output terminal (A2) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a third current path (ST3) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) via the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a first switching contact device (F1) for opening and closing the first current path (ST1); a first electrical surge protection component (G1) which is connected between the first and third current paths (ST1, ST3); and a mechanical tripping device (AU; B, S, EF, SL) for opening the first switching contact device (F1) when in a non-tripped state and for closing the first switching contact device (F1) in order to interrupt the third current path (ST3) when in a tripped state at a tripping current in the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2) caused by exceeding a nominal parameter and/or by degrad

A control device for controlling an electrical load may include a slider knob, a plurality of light sources, a diffuser, and a control circuit. The slider knob may be configured to move in a vertical direction along an elongated slot located in a bezel of the control device. The diffuser may be located along the elongated slot and be configured to be illuminated by the plurality of light sources to indicate the amount of power delivered to the electrical load. The control circuit may be configured to control the amount of power delivered to the electrical load in response movement of the slider knob along the elongated slot, and to illuminate at least a portion of the diffuser to indicate the amount of power delivered to the electrical load. In response to receiving a message to control the electrical load by a remote device, the control circuit may be configured to illuminate the diffuser to indicate the amount of power delivered to the electrical load such that the illuminated portion of the diffuser does not align with the location of the slider knob.

A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.

A jog dial according to the present invention can be used in an electronic device. The jog dial according to the present invention comprises: a dial knob rotatably provided on an upper surface of an operation panel of the electronic device; an object provided on the dial knob; and a detector provided below the operation panel, and detecting the object so as to output a signal, wherein the dial knob and the detector are separated from each other.

A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.

A switch includes an actuator for moving the switch from an OFF position to an ON position. A resistor is connected in series between a first terminal and a second terminal, and limits inrush current that flows when the switch is moved from the OFF position to the ON position.

The invention relates to an input device (10) for ascertaining manual operation, having a touch-sensitive sensor element (12) that is mounted movably such that it is movable in a direction of operation (14) on the manual operation, the touch-sensitive sensor element (12) being mechanically coupled to a force sensor element (16).

A method for generating charge for a service disconnect operation for an electric meter includes: charging a service disconnect capacitor for an electric meter to a voltage higher than a voltage provided by a power supply of the electric meter; monitoring the voltage on the service disconnect capacitor; receiving, by the electric meter, a service disconnect switch instruction signal; determining, based on the monitoring, whether the voltage on the service disconnect capacitor exceeds a specified voltage threshold value; and in response to receiving the service disconnect switch instruction signal and determining that the voltage on the service disconnect capacitor exceeds the specified voltage threshold value, discharging the service disconnect capacitor through windings of a service disconnect actuator. The service disconnect actuator may be configured to cause contacts of a service disconnect switch to change position to make or break a circuit connection between a line voltage and a load.