Patent
Constant current source employing power conversion circuitry
Reads0
Chats0
TLDR
In this article, a special resistor network is provided to precisely control the duty cycle of the current output of a transformer, in order to compensate for varying inductances found in the primary winding of the transformer.Abstract:
An energy source for supplying power to a rechargeable battery or the like provides a constant current input to the front end of a transformer. In order to compensate for varying inductances found in the primary winding of the transformer, a special resistor network is provided to precisely control the duty cycle of the current output.read more
Citations
More filters
Patent
Cross-client sensor user interface in an integrated security network
TL;DR: In this paper, the authors present a system user interface (SUI) that provides an iconic, at-a-glance representation of integrated security system status for use across all client devices including mobile or cellular telephones, a mobile portal, a web portal, and a touchscreen device.
Patent
Security network integrated with premise security system
TL;DR: In this paper, an integrated security system that integrates broadband and mobile access and control with conventional security systems and premise devices to provide a tri-mode security network (broadband, cellular/GSM, POTS access) that enables users to remotely stay connected to their premises.
Patent
Control system user interface
TL;DR: In this article, a gateway is coupled with a sensor user interface (SUI) and a floor plan display that represents at least one floor of the premise, and the floor plan displays visually and separately indicate a location and a current state of each premise device of the plurality of premise devices.
Patent
Premises management networking
Reza Raji,Gerald Gutt +1 more
TL;DR: In this article, the authors present a method for premises management networking, which includes monitoring premises management devices connected to a gateway at a premises, controlling premises management device connected to the gateway at the premises, receiving an uplink-initiation signal associated with a network operations center server; and in response to the uplink initiation signal, initiating, from the gateway from the premises to the network operations centre server, communications between the gateway and the network operation center server.
Patent
Method and apparatus providing a multi-function terminal for a power supply controller
TL;DR: In this paper, a power supply controller for switched mode power supply includes a drain terminal, source terminal, a control terminal and a multi-function terminal, which can provide any one or some of a plurality of functions including on/off control, external current limit adjustments, under-voltage detection, overvoltages detection and maximum duty cycle adjustment.
References
More filters
Patent
Current mode converter with controlled slope compensation
TL;DR: In this paper, a current mode converter with continuously variable optimized slope compensation and improved power factor is presented, where a ramp signal is generated with a slope that is determined by the loading of the converter.
Patent
Current mode control arrangement with load dependent ramp signal added to sensed current waveform
TL;DR: In this paper, a switching converter in which current mode voltage regulation is implemented includes circuitry to add ramp compensation to the sensed current signal at light load and reduce or disable this ramp signal compensation at heavy load 257, 258, 259, 260.
Patent
Flyback power supply having a VCO controlled switching rate
TL;DR: In this paper, an error amplifier produces an error signal from the difference between a reference voltage and an output voltage feedback signal, and a comparator compares the error signal against a current sense feedback signal indicating the current flowing through the power switch.