877 results about "Turn on time" patented technology

A power supply circuit for operating high-efficiency lighting devices from a thyristor-controlled dimmer determines the dimming value, i.e., the dimmer duty factor by periodically probing the dimmer output. A minimum conductance is applied across the output of the dimmer during probing intervals that begin at the turn-on time of the dimmer and last until enough information has been gathered to correctly predict a next zero crossing of the AC line voltage that supplies the input of the dimmer. The dimming value is determined from the time interval between the predicted zero-crossing and a next turn-on time of the dimmer. The probing can be performed at intervals of an odd number of half-cycles of the AC line frequency so that a DC offset is not introduced within internal timing circuits of the dimmer. The AC line frequency can also be determined from a time interval between the predicted zero crossings.

A fixing control device includes a power distribution controller that adjusts a power distribution time period when the power is distributed to plural heater elements per control cycle, a turn on time determining member that determines a time when each of the plural heater elements is turned on based on a duty ratio between the power distribution time period and the control cycle, and a soft operation controller that either gradually starts or stops heating each of the plural heater elements during a soft start or stop period, respectively. One of the soft start and stop periods for one of the plural heater elements is decreased not to overlap with another one of the plural heater elements.

To provide an illuminator for plant growth that can illuminate a plant intermittently (pulse illumination) or continuously to cause an effect similar to sunbeam spot phenomenon, thereby accelerating photosynthetic reaction.Specifically, the illuminator for plant growth includes a light source composed of a semiconductor optical device, a control unit for outputting a turn-on timing signal for the light source, a rhythm signal detecting unit for A / D converting an input rhythm signal, a timing signal modulating unit for modulating the turn-on timing signal with the output signal from the rhythm signal detecting unit, and a pulse drive unit for pulse-modulating a power signal with the modulated turn-on timing signal outputted from the timing signal modulating unit and supplying the pulse-modulated power signal to the light source.

The present invention is a load balancing and distributing switch-on / turn-on control for a circuit breaker, an appliance, a device, or an apparatus wherein each switch-on device on a circuit breaker, appliance, device, or apparatus generates and provides a turn-on time delay up to a maximum turn-on time delay so that the turn-on times and respective loads after a power failure from all circuit breakers, appliances, devices, and / or apparatuses are distributed and / or balanced over a turn-on period. The present invention distributes and balances the load and consumption by various appliances, devices, and apparatuses at the time of initial power up after a power failure. The present invention also distributes the turn-on times of the various appliances, devices, and apparatuses at the initial power up time. A circuit system and method for load balancing and distributing switch-on control of an operating device. A micro-controller is able to couple to the operating device and to a power-in bus for receiving power from a power source. A relay switch system is coupled to the micro-controller for controlling the power from the power-in bus. The relay switch system is able to couple to a power-out bus to control the power to the operating device. The micro-controller generates a power-up delay time through which the micro-controller must wait and control the relay switch system to hold the power to the power-out bus before the relay switch is released to supply the power to the power-out bus for operation of the operating device.

A Wi-Fi module provided in the portable terminal is controlled in such a manner that it is turned on or turned off according to a type setting information item including a setup value defining at least one of: a turn-on time interval of the Wi-Fi module, a turn-off time interval of the Wi-Fi module, and a frequency scanning period of the Wi-Fi module in the turn-on status, and scanning is executed according to the set frequency scanning period in the turn-on status.