HEATING SYSTEMS FOR SINGLE

Brand	Owner	Address	Description
HYDROHEAT	STATE INDUSTRIES, INC.	500 Lindahl Parkway Ashland City TN 37015	HEATING SYSTEMS FOR SINGLE AND MULTI-FAMILY RESIDENCES COMPRISING PRIMARILY AN AIR HANDLING UNIT CONNECTED TO AN AUTOMATIC GAS OR OIL-FIRED WATER HEATER;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

In a current fed electronic ballast multiple lamps are operated in a parallel circuit arrangement. The ballast provides pre-heating to the cathodes of the lamps for a period of time before an open circuit voltage is ramped up to the preferred starting voltage of the lamps. An open circuit voltage controller times coordinates the pre-heating and the operating voltage. After the pre-heating phase, current is removed from the cathodes of the lamps so that electricity is not wasted to the cathodes while the lamps are lit. A single switch is used to switch cathode pre-heating on and off, regardless of how many lamps the ballast operates. A decoupling array of diodes allows the single switch to coordinate pre-heating to all the lamps.