Driver to transmit signals over a transmission line in a well

Details Driver to transmit signals over a transmission line in a well Driver to transmit signals over a transmission line in a well

G - Physics

01

V

G01V 11/00 (2006.01)

Patent

CA 2729238

An apparatus includes a transmission line for deployment in a well, and a driver to transmit signals over the trans-mission line. The driver includes a field-effect transistor (224, 242), and an operational amplifier (226, 244) to control the field-ef-fect transistor (224, 242), where the operational amplifier (226, 244) and field-effect transistor (224, 242) cooperate to form a voltage-to-current converter.

L'invention concerne un appareil comprenant une ligne de transmission destinée à être déployée dans un puits, et un pilote pour transmettre des signaux sur la ligne de transmission. Le pilote comprend un transistor à effet de champ (224, 242), et un amplificateur opérationnel (226, 244) pour commander le transistor à effet de champ (224, 242), l'amplificateur opérationnel (226, 244) et le transistor à effet de champ (224, 242) coopérant pour former un convertisseur de tension en courant.

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