JPS5536749A - Rotation-angle sensor - Google Patents
Rotation-angle sensorInfo
- Publication number
- JPS5536749A JPS5536749A JP10974778A JP10974778A JPS5536749A JP S5536749 A JPS5536749 A JP S5536749A JP 10974778 A JP10974778 A JP 10974778A JP 10974778 A JP10974778 A JP 10974778A JP S5536749 A JPS5536749 A JP S5536749A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- integrated
- com5
- charged
- comparator
- 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.)
- Granted
Links
Landscapes
- Electrical Control Of Ignition Timing (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To make the generation of a reference signal possible even though an integrated voltage is low by varying a sensing level at a specified ratio corresponding to the peak value of the integrated voltage.
CONSTITUTION: In a reference signal circuit for sensing the rotational displacement of a disk 1, a pickup coil 3b generates a voltage Vs which has 3 positive and negative peaks per 1 rotation of the disk and containing a noise voltage. The voltage Vs is compared with a voltage Vcc from a capacitor C1 in a comparator COM3. C2 is charged by a voltage which is approximately equivalent to the peak value of the comparator voltage, i.e. integrated output voltage, by the emitter current of a transitor Q2. When C2 is not charged, a voltage determined by a division ratio of resistors R25 and R26 is applied to a comparator COM5, and when C2 is charged, a voltage determined by a division ratio of resistors R25 and R26 is likewise applied to COM5. The value obtained by dividing said integrated peak value by the division ratio of R25 and R26 becomes a sensing level of COM5, thereby the sensing level is set at a low level corresponding to the integrated voltage peak.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10974778A JPS5853285B2 (en) | 1978-09-08 | 1978-09-08 | Rotation angle detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10974778A JPS5853285B2 (en) | 1978-09-08 | 1978-09-08 | Rotation angle detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5536749A true JPS5536749A (en) | 1980-03-14 |
JPS5853285B2 JPS5853285B2 (en) | 1983-11-28 |
Family
ID=14518216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10974778A Expired JPS5853285B2 (en) | 1978-09-08 | 1978-09-08 | Rotation angle detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5853285B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5714715A (en) * | 1980-07-02 | 1982-01-26 | Diesel Kiki Co Ltd | Generator for reference position signal |
-
1978
- 1978-09-08 JP JP10974778A patent/JPS5853285B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5714715A (en) * | 1980-07-02 | 1982-01-26 | Diesel Kiki Co Ltd | Generator for reference position signal |
Also Published As
Publication number | Publication date |
---|---|
JPS5853285B2 (en) | 1983-11-28 |
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