| 摘要 |
PCT No. PCT/NO92/00107 Sec. 371 Date Dec. 29, 1993 Sec. 102(e) Date Dec. 29, 1993 PCT Filed Jun. 16, 1992 PCT Pub. No. WO93/01502 PCT Pub. Date Jan. 21, 1993.The present invention relates to an arrangement in a current detection circuit. There is a primary coil for the current to be detected, a separate transformer core which is influenced by the current of the primary coil, a secondary coil conducting a transformed secondary current, as well as a tertiary coil connected to an operational amplifier including a feedback resistor and constituting a current-voltage converter circuit with an input resistance of nearly zero ohms.
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