Patent
Circuit and associated method for reducing power consumption in an a power transformer
TLDR
In this article, a method and circuit for reducing power consumption in a power transformer, typically incorporated into an electrical or electronic device such as a consumer device, is presented. But the method is limited to the case where the power transformer senses the occurrence of no-load conditions in the transformer and responsively disengages from a coupled source of power (e.g., wall outlet).Abstract:
A method and circuit is provided for reducing power consumption in a power transformer, typically incorporated into an electrical or electronic device such as a consumer device. In an embodiment, a detection/isolation circuit is coupled to an input of a power transformer/rectifier via a switching device. The switching device can be, for example, a solid state relay. The detection/isolation circuit is configured to sense the occurrence of no-load conditions in the power transformer and responsively disengage the power transformer from a coupled source of power (e.g., wall outlet) via the coupled switching device.read more
Citations
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TL;DR: In this paper, a control circuit for use in a power converter with an unregulated dormant mode of operation is disclosed, where the drive signal generator is coupled to the control circuit to regulate a flow of energy to the power converter output.
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Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter
Alex B. Djenguerian,Leif Lund +1 more
TL;DR: In this paper, an unregulated dormant mode control circuit is coupled to render dormant the drive signal generator, thereby ceasing the regulation of the flow of energy to the power converter output by the generator when the energy requirement of one or more loads falls below a threshold for more than a first period of time.
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Thermostat circuitry to control power usage
TL;DR: In this paper, an operation alteration of a network-attached thermostat to control power usage is described. But the authors do not specify how to reduce power usage of the thermostats.
References
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Patent
Switching control circuit having off-time modulation to improve efficiency of primary-side controlled power supply
TL;DR: In this paper, a voltage-waveform detector produces a voltage feedback signal and a discharge-time signal by multi-sampling a voltage signal of a transformer, and the discharge time represents a discharge time of a secondary-side switching current.
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