TIMING WAVEFORM GENERATOR

摘要

19 48,325 A timing waveform generator which provides substantially noise immune timing waveforms in response to a polyphase source voltage suitable for thyristors. Each timing waveform is phase shifted from a reference sine wave using a combination of filtering and hysteresis, to achieve the total desired phase shift angle. The timing waveforms are also logically related to determine improper phase sequence and/or a missing phase.