Switching system for cyclic supply of electrical power to a plurality of loads
US4410794A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Apr 29, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/693
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A switching system for sequential connection of a plurality of loads to an alternating current supply comprises a computer for generating switch selection data in the form of serial bits along a single line to a distributor arrangement which decodes the selection data and provides control signals to switch devices which connect the loads to the supply. The distributor arrangement includes a circuit for inhibiting supply of the control signals to the respective switch devices unless the voltage of the supply phase connected by the device is substantially zero. Additionally the control signals are time-advanced with respect to the zero voltage conditions so that the switch devices can be placed in states in which they can connect a load before disconnection of a preceding load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.