Addressable power switch
AssigneeFifth Light Technology Ltd.
InventorsBarna Szabados, Roumanos Joseph Dableh, Kyle Van Bavel
Life of this patent
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Abstract
An addressable power switch for selectively connecting a device to main power in response to command instructions received over a control bus. The control bus supplies a low voltage power source and the addressable power switch includes an energy storage device and charge circuit for deriving a charge current from the low voltage power source and charging the energy storage device. The addressable power switch also includes a latching relay for connecting the device to main power. The change in state of the latching relay is realized through controlling discharge of the energy storage device, which supplies an energy pulse upon discharge. The switch may be used in connection with addressable lighting systems.
Claims20
An addressable power switch for connecting a device to a main power source, the power switch being connected to a control bus, wherein the control bus includes a low power source, comprising:
- an energy regulation stage for receiving the control bus input and outputting a regulated DC voltage derived from said low power source;
- a controller having an input port connected to said control bus input and an output port for supplying a control signal;
- an energy storage device;
- a charge circuit connected to the energy regulation stage for charging the energy storage device using said regulated DC voltage;
- and
- a switching stage for selectively connecting said device to said main power source in response to said control signal, said switching stage including a discharge switch and a power relay, wherein said discharge switch is responsive to said control signal for connecting said energy storage device to said power relay thereby at least partly discharging said energy storage device through said power relay and actuating said power relay, wherein said power relay connects said main power to said device.
An addressable power switch for connecting a device to a main power source, the power switch being connected to a control bus, wherein the control bus includes a low power source, comprising:
- charging means connected to said control bus for generating a trickle charge current derived from said low power source;
- energy storage means for storing energy from said trickle charge current;
- control means connected to said control bus for detecting addressed commands and for outputting a control signal to control discharge of said energy storage means;
- and
- means for selectively connecting said device to said main power source in response to said control signal including a switch means and a relay means, wherein said switch means is responsive to said control signal for connecting said energy storage means to said relay means thereby at least partly discharging said energy storage means through said relay means and connecting said main power to said device.
An addressable lighting control system comprising:
- at least one lamp;
- a lighting control system comprising a central controller and at least one control bus for distributing control instructions, said central controller including a low power source for supplying power via said control line;
- an addressable power switch connected to said control bus for selectively connecting said at least one lamp to main power in response to said control instructions, the addressable power switch including
- an energy regulation stage connected to said control bus and outputting a regulated DC voltage derived from said low power source;
- a controller having an input port connected to said control bus and an output port for supplying a control signal;
- an energy storage device;
- a charge circuit connected to the energy regulation stage for charging the energy storage device using said regulated DC voltage;
- and
- a switching stage for selectively connecting said at least one lamp to said main power source in response to said control signal, said switching stage including a discharge switch and a power relay, wherein said discharge switch is responsive to said control signal for connecting said energy storage device to said power relay thereby at least partly discharging said energy storage device through said power relay and actuating said power relay, wherein said power relay connects said main power to said at least one lamp.
Dependencies are inferred from the claim text.