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Driver Offers Proportional Solenoid Control Without PLC, Microcontroller.

Driver Offers Proportional Solenoid Control Without PLC, Microcontroller.

Authors :
Leyva, Phill
Brewer, Robert
Source :
Electronic Design. 8/14/2008, Vol. 56 Issue 16, p73-74. 2p. 1 Diagram, 1 Chart, 1 Graph.
Publication Year :
2008

Abstract

The article discusses the ability of a digital-driver circuit to provide a proportional drive for a solenoid and eliminating the need for a microcontroller or a programmable logic controller (PLC) in the U.S. The authors stated that U2, a 350-mA driver with built-in analog and pulse-width-modulation (PWM) dimming control has been connected directly to the solenoid terminals. Meanwhile, U1, a 32-tap, nonvolatile and linear-taper digital potentiometer has been connected as a variable resistor. Moreover, to guard its output against overcurrent and short-circuit conditions created by a defective solenoid or shorted leads, U2 provided indirect short-circuit and thermal protection.

Details

Language :
English
ISSN :
00134872
Volume :
56
Issue :
16
Database :
Academic Search Index
Journal :
Electronic Design
Publication Type :
Periodical
Accession number :
34384376