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Patent No. 6718554

Hands free towel carrying system

A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.

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Class 363/76 - Including integral sensing and control means for rectifier


Subclass of Class 363 - Electric power conversion systems
Definition: Subject matter wherein the system is a rectifier which includes
No. of patents: 8
Last issue date: 11/27/2007


NumberTitleIssue Date
7301313Multiple voltage regulators for use with a single load
Multiple voltage regulators for use with a single load. The present invention allows power to be supplied to an electrical load using multiple voltage regulators based on the operating environment of the load. In one embodiment, a primary voltage regulator that is b...
11/27/2007
7005829System for precharging a DC link in a variable speed drive
A variable speed drive with a converter that is controllable to precharge a DC link is provided. The variable speed drive also includes an inverter. The converter converts a fixed line frequency, fixed line voltage AC power from an AC power source into DC power. The...
02/28/2006
7005609Apparatus for a welding machine having a cooling assembly mounted to a mid-plane baffle for improved cooling within the welding machine
A mid-plane baffle or plate having a fan mounted thereto to dissipate heat within a welding machine is provided. By centrally positioning a baffle and mounting a circulating fan thereto, cooling efficiency is improved thereby enabling more direct cooling of the inte...
02/28/2006
6992906Synthetic rectifiers
A synthetic rectifier comprises a MOSFET and a control circuit to turn the MOSFET off and on as a synchronous rectifier. The control circuit senses the current through the synthetic rectifier, and in particular is responsive to the rate of decrease of the current so...
01/31/2006
6956748Switching power supply apparatus
A switching power supply apparatus which has an input power source; a transformer having a primary winding, a secondary winding, an input winding and a magnetic flux canceling winding being connected to the secondary winding in series; a main switch for switching an...
10/18/2005
6879128Method and apparatus for independently controlling each phase of a multi-phase step motor
The current in each phase of a multi-phase step motor is monitored and the excess phase current above the set point current, as required on a cycle-by-cycle PWM basis, is reduced thereby bringing each phase current down to the set point. The PWM frequency is automat...
04/12/2005
5831807Overload and short circuit protection device for a power semiconductor circuit
An overcurrent and short circuit protection device for a power semiconductor component is responsive to output current signals representing the actual output current(s) of the semiconductor component. A short-circuit window comparator receives the output ...
11/03/1998
3982173AC-DC voltage regulator
AC-DC voltage regulation is achieved utilizing, among other components, a series pass control element which is serially connected to a detector and filter output stage and between circuit input terminals and an output load. A rectified input voltage is ap...
09/21/1976
 
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