Output module for industrial control with sink and source capability and low heat dissipation

Output module for industrial control with sink and source capability and low heat dissipation

The invention discloses an output module for industrial control with sink and source capability and low heat dissipation. An I/O circuit for use with an industrial controller provides a photovoltaic optical isolator communicating between a controller and a field-side of the I/O circuit, the photovol...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PASELA DAVID A, HILDEBRAN BRETT S, TERDAN DALE, VAN MINNEN CHARMAINE J, O'CONNELL JOHN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Beschreibung
Zusammenfassung:The invention discloses an output module for industrial control with sink and source capability and low heat dissipation. An I/O circuit for use with an industrial controller provides a photovoltaic optical isolator communicating between a controller and a field-side of the I/O circuit, the photovoltaic optical isolator (64) eliminating the need for high wattage power dropping circuits for powering the field-side of the I/O circuit from high-voltage field signals. The field effect transistor type transistors permit use of the low-power photovoltaic optical isolator while allowing flexible connections to various field circuit types.