Circuit for processing hall generator output signals |
|||||||
| 申请号 | US3622898D | 申请日 | 1970-05-20 | 公开(公告)号 | US3622898A | 公开(公告)日 | 1971-11-23 |
| 申请人 | CONTELESIS CORP; | 发明人 | SALMON ISIDORE WILLIAM; | ||||
| 摘要 | A Hall device is capacitively connected across direct and inverting inputs of a differential-operational amplifier. | ||||||
| 权利要求 | 1. A circuit for processing the output signal of a Hall generator, having a pair of pickup electrodes, comprising: capacitor means including at least one capacitor connecteD in series with the pair of electrodes; a high-gain, differential amplifier having inverting and direct input terminal and an output terminal, the series circuit of the capacitor means and of the pair of electrodes of the Hall device connected between the two input terminals; and resistive means connected for providing feedback between the output and the inverting input of the differential amplifier to determine amplifier gain, the connection to the input terminals of the amplifier compensating amplifier offset, signal drift and drift of amplifier gain. 2. A circuit as in claim 1, the capacitor means including a capacitor connected between the Hall generator and the inverting input of the amplifier, the capacitor having impedance lower than the resistance of the Hall generator for magnetic signal frequencies having information significance. 3. A circuit as in claim 1, comprising a second Hall generator having output electrodes connected in series to a second capacitor means, and connected therewith across the two input terminals of the amplifier, the first and second Hall generator for placement into the same flux path. |
||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈