JPS5574661A - Unbalanced voltage compensation circuit for hall element - Google Patents
Unbalanced voltage compensation circuit for hall elementInfo
- Publication number
- JPS5574661A JPS5574661A JP14778378A JP14778378A JPS5574661A JP S5574661 A JPS5574661 A JP S5574661A JP 14778378 A JP14778378 A JP 14778378A JP 14778378 A JP14778378 A JP 14778378A JP S5574661 A JPS5574661 A JP S5574661A
- Authority
- JP
- Japan
- Prior art keywords
- output
- hall element
- switches
- magnetic field
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Hall/Mr Elements (AREA)
Abstract
PURPOSE: To smooth the output through polarity inversion via the low pass filter, by polarity inversion of the input signal to be converted into magnetic field in about 50% of duty ratio and also by the polarity inversion of the output voltage at the output side of the Hall element in about 50% of duty ratio.
CONSTITUTION: The signal 30a fed to the input terminal of the Hall element 31 is the control current as (a). The input signal 30b is the current as (b) by turning on and off of the switch 35, and this current is converted into the magnetic field B with the core 34. While time t1, the switches 35b, 35c and switches 36b, 36c are closed and the switches 35a, 35d and 36a, 36d are opened, then the voltage at the Hall output terminal 37 is the sum of the Hall output voltage VH and the unbalanced voltage VHO as (c). At time T2, the switch is inverse as at time t1. As a result, the magnetic field B is also inversed to be -VH+VHO. The output after the inversion circuit 36 is (d) and it is smoothed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14778378A JPS5574661A (en) | 1978-12-01 | 1978-12-01 | Unbalanced voltage compensation circuit for hall element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14778378A JPS5574661A (en) | 1978-12-01 | 1978-12-01 | Unbalanced voltage compensation circuit for hall element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574661A true JPS5574661A (en) | 1980-06-05 |
Family
ID=15438085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14778378A Pending JPS5574661A (en) | 1978-12-01 | 1978-12-01 | Unbalanced voltage compensation circuit for hall element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574661A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698522A (en) * | 1986-11-21 | 1987-10-06 | Sangamo Weston, Inc. | Structure for Hall device for compensation of first and second order voltage offsets |
KR20170092450A (en) | 2014-11-28 | 2017-08-11 | 라이온 가부시키가이샤 | Measuring container |
-
1978
- 1978-12-01 JP JP14778378A patent/JPS5574661A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698522A (en) * | 1986-11-21 | 1987-10-06 | Sangamo Weston, Inc. | Structure for Hall device for compensation of first and second order voltage offsets |
KR20170092450A (en) | 2014-11-28 | 2017-08-11 | 라이온 가부시키가이샤 | Measuring container |
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