| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a current transformer to block and correct the errors and/or thermorunaway due to the temperature characteristics of a Hall element. SOLUTION: A Hall element 10 is magnetically connected to the core 74 of a device 70. By impressing a constant operating voltage on the Hall element 10 from a regulation amplifier 20, correcting the output signal voltage of the Hall element 10 according to voltage drops in a series resistance 18, and supplying it for the winding 72 of the device 70, a closed loop is constituted.</p> |
