摘要:
Timer-based switching circuit synchronization in an electrical dimmer is provided. The energizing of a switching circuit in a dimmer is synchronized with an AC wave to facilitate providing by the dimmer electrical power to a load. The synchronizing includes starting a timer having a predetermined timeout, responsive to receipt of a zero-crossing signal. Responsive to receipt of a subsequent zero-crossing signal prior to reaching the timeout, the timer is restarted, and responsive to expiration of the timeout, a switching circuit is energized at a predetermined firing angle with respect to the zero-crossing signal to supply electrical power to the load.
摘要:
In at least one embodiment, there is an electrical device comprising a functional module comprising a housing having a front face and a back face, and at least three arcuate blades extending out from the housing. At least one of the arcuate blades has a locking section. The functional module can be used in a wiring system comprising at least one wiring module. The wiring module can include a housing having a front face and a back face and at least one opening for receiving at least one of the at least three arcuate blades. The disclosure can also include a wiring module which can be used separately from the functional module wherein the wiring module includes a housing having at least one movable arm. Inside the wiring module is a plurality of contacts disposed in the housing, wherein these contacts are configured to couple to electrical wiring.
摘要:
In at least one embodiment, there is an electrical device comprising a functional module comprising a housing having a front face and a back face, and at least three arcuate blades extending out from the housing. At least one of the at least three arcuate blades has a locking section. The functional module can be used in a wiring system comprising at least one wiring module. The wiring module can include a housing having a front face and a back face and at least one opening for receiving at least one of the at least three arcuate blades. The disclosure can also include a wiring module which can be used separately from the functional module wherein the wiring module includes a housing having at least one movable arm. Inside the wiring module is a plurality of contacts disposed in the housing, wherein these contacts are configured to couple to electrical wiring.
摘要:
Light emitting diode (LED) light fixtures and methods of manufacturing LED light fixtures are provided. In one embodiment, an LED light fixture comprises a housing having a back surface, a first end portion, and a second end portion. The LED light fixture further comprises a support strip attached to the back surface of the housing adjacent to the first end portion. The support strip has at least one lamp holder configured to physically support a first end of an LED lamp. Also, the LED light fixture includes a power supply strip attached to the back surface of the housing adjacent to the second end portion. The power supply strip has at least one receptacle configured to physically support a second end of the LED lamp. The at least one receptacle is further configured to provide electrical power to the LED lamp.
摘要:
The present invention relates to an illuminated receptacle. In one particularly preferred embodiment, the receptacle preferably includes a body, a cover for coupling to said body, said cover having one or more sockets for receiving a plug, a tamper resistant (TR) platform associated with each of the one or more sockets, each of the TR platforms being disposed between the body and the cover, each of the TR platforms including a cavity and an aperture extending thru said platform in said cavity, a slider disposed within each of the cavities of the platform and aligned with the openings of a respective socket, and a light source disposed within each of the apertures formed in the platforms, the light sources operatively coupled to electrical power for generating light to illuminate said slider, the light sources being positioned to directly transmit light to the sliders.
摘要:
A bi-directional fault circuit interrupter system having mis-wiring protection via numerous different poles. There are at least three different transformers wherein at least two of the transformers are differential transformers and at least one transformer is a neutral transformer. There is also at least one actuator which is used to switch the switches back and forth to selectively connect the electrical current to the fault circuit.
摘要:
An electrical control device comprising a housing configured to be at least partially mountable within a single-gang electrical box; and including at least first and second switches disposed at least partially within the housing, each the at least first and second switches configured as providing a respective first and second input to the electrical control device and, the electrical control device being configured to be wired to a respective first and a second electrical load. A communications device disposed at least partially within the housing is configured to wirelessly transmit a control signal to control at least one additional electrical load.
摘要:
A self testing fault circuit interrupter device comprising a fault circuit comprising at least one line monitoring circuit, at least one line interrupting circuit and at least one fault detector circuit which is configured to selectively operate said at least one line interrupting circuit when a fault is detected. This fault circuit also includes at least one test circuit configured to initiate a self test on the fault circuit and at least one timing circuit for controlling the time period for a self test being performed on said at least one self test circuit. The timing circuitry can be in the form of external circuitry which comprises a transistor which controls the discharge rate of a timing capacitor. The timing capacitor is present to prevent any false triggering of a fault circuit. A fault circuit test condition does not stop until the capacitor is fully discharged. By controlling the timing capacitor discharge rate, the triggering of an SCR is not delayed too much in the presence of an external fault because during the presence of this external fault the test cycle is considerably shortened in time based directly upon the size of the external fault. The testing circuit can include a microcontroller which can be programmed to perform a self test across at least two different half cycles of opposite polarity. The determination of the timing of the self test is based upon timing performed by the microcontroller in combination with zero crossing circuitry.
摘要:
A continuous plating system with mask registration is disclosed herein that uses drums and rollers with protruding pins which engage with guide holes in a masking belt and a lead frame. Through engagement with the pins the masking belt is keyed to the lead frame as the lead frame passes through a plating solution tank.
摘要:
Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lockout state before shipment are provided.