Industry Patents
Patent: 5600233
Electronic Power Control Circuit
(Click image for PDF of full patent)
| Patent Number: |
5600233 |
| Title: |
Electronic Power Control Circuit |
| Abstract: |
An improved method and apparatus for handling the large load currents which
occur with overloads, short circuits, and momentary overcurrents such as
in starting motors or cold incandescent lamp filaments. The method
involves turning the load current off when an overcurrent is detected, and
then back on again before the end of the half-cycle in which the
overcurrent occurred. This allows more current to flow during the
half-cycle without the need to increase the peak current capability of the
power-handling components. With an incandescent lamp load, this results in
more rapid lamp brightening without the need for larger, more expensive
components. Several embodiments are disclosed which respond to different
features of the power line voltage cycle, including a very low-cost
microprocessor circuit and power supply.
|
| Country of Issue: |
US |
| First Named Inventor: |
Warren, Gorman |
| Assignee: |
Chicago Stage Equipment |
| Continuation or Divisional of: |
|
| International Classification: |
G05F 1/10 |
| US Classification: |
323/237 |
| Issue Date: |
02-04-1997 |
| Filing Date: |
08-22-1995 |
| Application : |
518107 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
5600233 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
5600233 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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