Illumination apparatus
AssigneePanasonic Corporation
InventorShigeru IDO
Life of this patent
Estimating the term…
Abstract
An illumination apparatus includes: a series circuit of a thyristor and at least one load circuit connected across an AC power source; a current control circuit for adjusting an input current to be maintained at a predetermined level during a part or the whole of an ON period of the thyristor; and a short circuit for short-circuiting input ports of the load circuit to have a predetermined resistance during a part of the ON period of the thyristor and a part or the whole of an OFF period of the thyristor. The current control circuit and the short circuit are connected in parallel to the load circuit.
Claims6
An illumination apparatus comprising:
- a series circuit of a thyristor and at least one load circuit connected across an AC power source;
- a current control circuit for adjusting an input current to be maintained at a predetermined level during a part or the whole of an ON period of the thyristor;
- and
- a short circuit for short-circuiting input ports of the load circuit to have a predetermined resistance during a part of the ON period of the thyristor and a part or the whole of an OFF period of the thyristor,
- wherein the current control circuit and the short circuit are connected in parallel to the load circuit.
Dependencies are inferred from the claim text.