The present invention relates to an energy-saving system for three-phase induction motors and is based on the principle of variable voltage control at constant speed. It is composed of a microprocessor, exampling circuit, sensing circuit, acquiring circuit, firing circuit, and AC to AC converter. Th.....
[Detail]
An underwire assembly for use in a brassiere including an elongate support member of three-dimensional elongate form. The supporting member extends in at least two planes for conforming to an inferior profile of the breast of a wearer.
[Detail]
A driving method for improving luminous efficacy of a light emitting diode (LED), the method comprising: periodically switching a DC current supplied to the LED between a high current level lH and a low current level lL, the low current level lLbeing fixed at zero or raised above zero to produce a D.....
[Detail]
A DC to DC converter includes a switch, a diode, and a capacitor connected in series with an inductor. The capacitor and inductor provide a resonant time period and are connected in series with the switch and the diode. A control circuit provides an on/off signal to the switch and has a switching ti.....
[Detail]
This invention provides a deodorant capable of releasing deodorant agents at certain temperatures and having improved adherence to textiles. The deodorant of this invention includes polymer particles formed by reacting a main monomer of (N-substituted alkyl)acrylamide, a functional monomer for bondi.....
[Detail]
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