Abstract:
A contactless power supply system for transmitting power from a contactless power supply to a remote device comprises an inverter having a duty cycle and an operating frequency; a resonant circuit coupled to the inverter and having a resonant frequency and a primary for transferring power to the remote device; a power source coupled to the inverter and having a rail voltage; a receiver for receiving power information from the remote device; a sensor generating a sensor output; and a controller in electrical communication with the receiver. The controller is programmed to: (1) vary a first characteristic of the contactless power supply in response to the sensor output, the first characteristic being one of the resonant frequency of the resonant circuit, the operating frequency of the inverter, the rail voltage of the power source, and the duty cycle of the inverter, and (2) vary a second characteristic of the contactless power supply in response to the power information received from the remote device, the second characteristic being one of the resonant frequency of the resonant circuit, the operating frequency of the inverter, the rail voltage of the power source, and the duty cycle of the inverter and being different from the first characteristic.
Abstract:
The invention relates to an ultraviolet radiation lamp. The lamp comprises a substantially sealed cavity comprising a mercury-containing material; a filament disposed in the sealed cavity; and an electrical control element in contact with the filament, the electrical control element configured to adjust or maintain a temperature of the mercury-containing material with respect to a prescribed temperature. Such a constructions allows the present ultraviolet radiation lamp to be operated at optimal efficiency without the need to use additional components to add heat to and/or remove heat from the mercury-containing material.
Abstract:
According to one embodiment, an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water, includes a plurality of ultraviolet irradiation devices (11a,11b,11c) connected in series, and a controller configured to control output and non-output of the ultraviolet irradiation devices (11a,11b,11c). The ultraviolet irradiation device (11a,11b,11c) includes a water processing vessel through which the raw water flows, an ultraviolet lamp configured to irradiate the raw water in the water processing vessel with ultraviolet rays, and an ultraviolet sensor configured to measure an amount of ultraviolet rays emitted from the ultraviolet lamp.
Abstract:
A high pressure gas discharge device and methods of using the device as UV gas discharge light source are disclosed. The device has a cathode covered partially with a dielectric layer which separates the cathode from an anode. A discharge device utilizes one or more microhollows in the uncovered part of the cathode. Methods of utilizing the discharge devise as a gas discharge light source for producing ultapure water.
Abstract:
The invention provides an inductive power supply for supplying power to a remote device. The efficacy of the device is enhanced by receiving a remote device ID from the remote device, obtaining remote device power requirement information, maintaining an active remote device list in a memory and changing the power supply based on the power requirement information.
Abstract:
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.
Abstract:
The output wavelengths of an electrodeless lamp 101 are controlled by passing a fluid 102 over the surface 104 of the lamp to control its temperature. The stabilized temperature prevents thermal runaway of the lamp 101 and stabilizes the output wavelengths of the lamp 101. When the fluid 102 passing over the lamp 101 is water, the lamp 101 can be used for sanitary treatment of the water. The treatment can be enhanced by shaping the electrodeless lamp 101 to provide maximally effective water treatment.
Abstract:
The invention relates to a method for monitoring a plurality of at least three structurally identical electrical luminous elements, comprising a. applying to the plurality of luminous elements at least one supply signal from at least one ballast, b. reading at least one parameter for in each case the individual luminous element, c. forming at least one reference value from at least some of the read-out parameters of the different luminous elements, d. comparing the reference value with the parameter of an individual one of the luminous elements, e. generating a signal for each luminous element whose parameter exceeds a predetermined deviation from the reference value.