DocumentCode
3554669
Title
A monolithic optically isolated zero crossing triac driver
Author
O´Neil, Patrick, II ; Alonas, Paul G. ; Gilbert, David M.
Author_Institution
Motorola Semiconductor Group, Phoenix, Arizona
Volume
24
fYear
1978
fDate
1978
Firstpage
307
Lastpage
309
Abstract
This paper presents a description of an optically coupled device designed to drive triacs operating from the normal 115VAC line. The device provides optical isolation of the line triac from the logic trigger signal, and in addition performs the logic necessary to provide triac triggering only at the zero crossing of the AC line voltage. Theory of operation of the device and applications are presented.
Keywords
Circuits; Contacts; Couplings; FETs; Light emitting diodes; Logic devices; Optical sensors; Phototransistors; Threshold voltage; Thyristors;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1978 International
Type
conf
DOI
10.1109/IEDM.1978.189414
Filename
1479839
Link To Document