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7612311 |
Methods and systems for controlling electric heaters
Systems and methods for controlling a heater to drive a load temperature to approximate a setpoint. At the beginning of each ½ AC cycle, a sigma delta modulation algorithm is computed to determine...
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7608805 |
Control system for battery powered heating device
A control system and method of controlling a battery powered heating device such as a soldering or desoldering tool that includes a control circuit to control the delivery of power to a cartridge...
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7598476 |
Image forming apparatus having improved flicker characteristics and method thereof
A fusing apparatus in an image forming apparatus that heats a fusing unit by applying an induced current is provided. The flicker characteristics of the fusing apparatus are improved by gradually...
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7593789 |
Water flow detection system for a bathing unit
The present invention provides a control system for a bathing unit that comprises a heating module, a temperature sensing entity and a heating module controller. The heating module includes a body...
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7586064 |
Method and system for providing thermostatic temperature control in an integrated circuit
A method for providing thermostatic temperature control in an integrated circuit is provided that includes internally heating the integrated circuit until the integrated circuit reaches an elevated...
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7573005 |
Boil detection method and computer program
A method, computer program, and cooking device for detecting boiling of liquids. The invention is implemented with a computer program executed by a processor or other computing device of a cooking...
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7566845 |
Overheat protection circuit for power supply devices and direct-current power supply device
In an overheat protection circuit for power supply devices in the present invention, overheat protection is provided by using a Schottky barrier diode (SBD) in place of a dedicated thermosensor....
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7534979 |
Pressure-contact type rectifier with contact friction reducer
An objective is to provide a pressure-contact type rectifier in which solder that increases the environmental load is not used, and neither burning nor breakage of a rectifying device occurs, even...
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7495194 |
Heating apparatus and heating method
A heating apparatus includes a plurality of heating means that heat a heated object, a temperature measuring means that measures temperatures of some of the plurality of heating means, a heated...
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7491911 |
MEMS bubble generator for large stable vapor bubbles
A MEMS vapour bubble generator that uses a heater in thermal contact with a liquid to generate a bubble. The heater is energized by an electrical pulse that is shaped to have a relatively low...
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7488921 |
Adaptive startup control method for electric drives
A controlled start up technique may eliminate the excessive peak junction temperature by controlling the speed of the electric device. Lower speed may result in reduced power to the load. Reduced...
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7485832 |
Method and circuit for preventing over-heat of heat-generating device
A method and a circuit for preventing over-heat of heat-generating device which are provided with a trigger circuit and a microprocessor on a heater circuit. And the trigger circuit is connected...
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7454308 |
System for detection of waterlogging in steam heating coils
A system is disclosed for detecting the occurrence and extent of waterlogging in steam heating coils which consists of a series of two or more sensors disposed to measure temperature at strategic...
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7429719 |
Self-regulating heater with a semiconductor heating element and method of heating
A self-regulating heater including a semiconductor for converting electrical energy to heat. A temperature sensitive element is used to bias the semiconductor as a function of temperature. The...
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7423243 |
Heating system and method
A fluid heating system includes a fluid receptacle having a fluid reservoir, and a heating control system configured to heat fluid retained within the fluid reservoir. The heating control system...
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7423240 |
Pulse width modulated defroster
A window defroster system that includes a heater grid and a controller. The controller includes a pulse width modulator configured to provide a driving signal to the heater grid. The driving signal...
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7420142 |
Power control module for electrical appliances
A power module to regulate delivery of power to one or more loads is disclosed. The module includes a logic circuit configured to generate one or more control signals indicative of the power level...
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7417209 |
Recording disk drive with reduced noise thermal flyheight control
A system and method for preventing crosstalk noise from being superimposed on a read signal due to noise from a heater line for a slider in a recording disk drive is disclosed. A heater line pair...
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7408134 |
Programmable switch
A sensor circuit provides a signal to a microcontroller to indicate parameters of an environmental condition to which the sensor circuit is exposed, such as temperature. The sensor circuit and...
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7358463 |
Switching power supply and method for stopping supply of electricity when electricity of switching power supply exceeds rated electricity
A switching power supply includes a sensor for detecting that the output level of the switching power supply has exceeded a rated output level, and a memory that stores data for estimating...
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7351937 |
Control circuits for hot melt adhesive heater circuits and applicator heads
An electronic control circuit, for use in connection a hot melt adhesive dispensing system having a relatively large applicator head, has a plurality of heater circuits and a plurality of...
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7329840 |
Heater lamp control apparatus and method to detect an inputted AC voltage and providing a pulse signal to correspond thereto
A heater lamp control apparatus and method of detecting an input AC voltage and providing a pulse signal corresponding thereto, includes an AC voltage phase detection unit to detect a phase of the...
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7304272 |
Systems and methods for adjusting parameters of a temperature sensor for settling time reduction
A system for adjusting parameters of a temperature sensor for settling time reduction is disclosed. The system includes an input for receiving a signal for triggering an adjustment of one or more...
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7301129 |
Control circuit for semiconductor device having overheating protection function
A control circuit includes a drive circuit which applies a drive voltage to a semiconductor device having an overheating protection function according to an externally supplied signal; and a...
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7282676 |
Integrating preconcentrator heat controller
A method and apparatus for controlling the electric resistance heating of a metallic chemical preconcentrator screen, for example, used in portable trace explosives detectors. The length of the...
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7256371 |
Temperature control method for positive temperature coefficient type heating element
A controller adapted to control the temperature of a heating elements with a wide range of positive temperature coefficient of resistance, including very low values, using a sensor in line with the...
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7241979 |
Temperature controller and temperature control method, and heating wire therefor
The present invention relates to a non-electromagnetic wave temperature controller for a heating cable and a method therefor, which can perform heating and temperature detection in a...
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7223946 |
Method and device for control and diagnosis for the heating of a lambda probe
A method for controlling and regulating an electrical heating of a probe situated in the exhaust system of an internal combustion engine, a total heating power of the probe being set, and an actual...
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7211771 |
De-icing system for traffic signals
A circuit is disclosed for detecting and eliminating the buildup of snow and/or ice on the viewable face of an LED traffic signal lens. The circuit measures the ambient temperature within the LED...
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7202449 |
Brewing machine power management system and method
A power management system for managing the power supplied to a plurality of warming elements in a brewing machine, so as to conform to pre-set power safety requirements.
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7189949 |
Power control system and method for regulating power provided to a heating device
A circuit includes a switching device for controlling a power signal to be applied to a heating device. A control circuit is configured for comparing a temperature signal, indicative of the...
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7186956 |
Fuser-controlling apparatus for generating a power synchronization signal and detecting power voltage
A fuser-controlling apparatus for generating a power synchronization signal and detecting a power voltage. The fuser-controlling apparatus comprises a power synchronization signal generation...
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7183518 |
System of food storage preparation and delivery in finished cooked state
A system configured to provide food storage, preparation, and delivery in a finished cooked state includes a computer control interface, a freezer/refrigeration module, a food transport mechanism,...
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7177534 |
System and method for controlling heating and ventilating systems
A system and method for controlling a heating and ventilating system is provided. The method includes determining a demand for heat and creating an air flow. In addition, the method includes...
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7151241 |
Controller and heating wire capable of preventing generation of electromagnetic waves
The present invention relates, in general, to a temperature controller and heating cable used for electric heating bedding, such as an electric blanket, electric papered floor or electric...
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7138611 |
Heating structure and its temperature control method
A heating structure and its temperature control method having therein a heat generating line and a controller. The heat generating line includes a PTC element and a short circuit line serially...
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7119308 |
Forced-air heater control system and method
The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant...
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7115843 |
High-frequency pulse oscillator
The present invention generally relates to a high-frequency pulse oscillator, and more particularly to a high-frequency pulse oscillator adapted to provide pulse currents having a high frequency...
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7112768 |
Temperature control system for a bathing unit
A temperature control system for a bathing unit that includes a water holding receptacle and a heating module. The temperature control system comprises a plurality of actuators associated to the...
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7109448 |
Control system for cooking appliance employing radiant cooking
A cooking appliance includes a heating system which is preferably capable of combining radiant, convection, microwave and conduction heating techniques to perform a cooking operation. The cooking...
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7109447 |
Control system for cooking appliance employing convection and radiant cooking
A cooking appliance includes a heating system which is preferably capable of combining radiant, convection, microwave and conduction heating techniques to perform a cooking operation. The cooking...
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7060948 |
Temperature control method and apparatus for driving polymerase chain reaction (PCR) chip
Provided are a temperature control method and apparatus for driving a polymerize chain reaction (PCR) chip. In the temperature control apparatus, which is for a polymerize chain reaction chip, PCR...
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7050837 |
Mobile communication terminal apparatus including moisture detection
A mobile communication terminal device is disclosed having elements for detecting moisture in the device. These elements include the following precautionary features: a memory for recording a...
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7046923 |
Immersion heater device for aquariums and the like
An immersion heater device for aquariums and the like. The heater device has a casing which contains a heating element. The casing, at least in the region of a radiant zone of the heating element,...
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7012220 |
Alpha-numeric data entry and display for electronic oven control system
A cooking appliance employing rapid cook technology includes an electronic oven control system employing an alpha-numeric data entry and display arrangement. The cooking appliance includes a...
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7005618 |
Clothes dryer apparatus and method
An electric clothes dryer heater system including a heater element and a controller operationally coupled to the heater is provided. The controller is configured to provide an AC sine wave to a...
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6984810 |
Heater control apparatus and method
A heater control is performed without problems when a normal detection of a power source frequency cannot be performed. A heater control apparatus is configured and arranged to be operable by an...
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6960744 |
Electrically tunable on-chip resistor
A device having a resistor and a heater disposed proximate to the resistor and capable of raising the temperature of the resistor. The device further includes a dieletric disposed between the...
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6953917 |
System and method for ensuring the qualification of a workman to perform a task having established required standards
A method and system for ensuring compliance with regulatory requirements to train, test, perform, evaluate and document identified covered tasks and provide the means to meet governmental and/or...
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6933475 |
Method and system for turning on an optical radiation source
An optical communication module includes an optical radiation source as well as control circuitry to control the temperature and the power emitted by he optical source. In order to permit soft...
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