H - Electricity – 02 – H
Patent
H - Electricity
02
H
323/6
H02H 9/00 (2006.01) G01F 1/60 (2006.01)
Patent
CA 1314308
Abstract A protective circuit for the induction coil (1) of a magnetically inductive flow meter permits this coil to be disposed in an explosion risk zone. The induction coil (1) is firmly connected to a current receiving circuit (21; 121) which bridges same and has two Miller integrators. In the leads (3, 4) there is a two-part current limiting circuit (7; 107). Depending on the direction of the current, parts of the current receiving circuit and of the current limiting circuit are made inactive by bridging diodes (10, 11, 24, 25; 110, 111, 124, 125).
522245
Hansen Henning Max
Pedersen Allan Skovgaard
Danfoss A/s
Macrae & Co.
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