KR970004319A - Geomagnetic Sensor Pulse Drive Circuit - Google Patents

Geomagnetic Sensor Pulse Drive Circuit Download PDF

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Publication number
KR970004319A
KR970004319A KR1019950017834A KR19950017834A KR970004319A KR 970004319 A KR970004319 A KR 970004319A KR 1019950017834 A KR1019950017834 A KR 1019950017834A KR 19950017834 A KR19950017834 A KR 19950017834A KR 970004319 A KR970004319 A KR 970004319A
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KR
South Korea
Prior art keywords
pulse
input
capacitor
resistor
switching elements
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Application number
KR1019950017834A
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Korean (ko)
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KR0147755B1 (en
Inventor
박연식
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정몽원
만도기계 주식회사
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Priority to KR1019950017834A priority Critical patent/KR0147755B1/en
Publication of KR970004319A publication Critical patent/KR970004319A/en
Application granted granted Critical
Publication of KR0147755B1 publication Critical patent/KR0147755B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/28—Electromagnetic compasses
    • G01C17/30—Earth-inductor compasses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

본 발명은 지자기 센서의 펄스구동회로에 관한 것으로 그 목적은 종래 저항가 캐패시터의 결합에 의한 미분회로와 적분회로에 의해 결정되는 발진부파수의 변경과정이 복잡하였던 점을 해결하여 발진주파수의 변경이 용이한 지자기 센서의 펄스구동회로에 관한 것이다.The present invention relates to a pulse driving circuit of a geomagnetism sensor. The object of the present invention is to solve the complicated process of changing the oscillation frequency determined by the differential circuit and the integrating circuit by the combination of the capacitors, thereby making it easy to change the oscillation frequency. It relates to a pulse driving circuit of a geomagnetic sensor.

본 발명에 따른 펄스구동회로의 펄스발생부(8)는 상호 대향되게 마련되어 콘트롤단자와 입출력단자를 갖고 콘트롤 단자의 신호에 의해 입출력단자가 접속되는 하나 이상의 스위칭소자(SW1),(SW2)와, 각각 병렬연결된 저항(R3)와 캐패시터(C1), 저항(R4)와 캐패시터(C2)가 상기 스위칭 소자(SW1),(SW2)의 콘트롤 단자에 각각 직렬연결되어 RC시정수에 의한 주기로 상기 스위칭 소자(SW1,SW2)를 온오프시키고, 상기 저항(R3),(R4)의 타단이 각각 직렬연결된 동일 스위칭소자(SW2),(SW1)의 입력단에 연결되고 캐패시터(C1), (C2)의 타단은 각각 반대 스위칭 소자(SW2), (SW1)의 입력단에 연결되는 구성을 갖고 상기 저항과 캐패시터의 RC시정수에 의해 발진주파수가 결정되며 RC값을 변경하여 용이하게 발진주파수를 산출할 수 있다.The pulse generator 8 of the pulse driving circuit according to the present invention is provided so as to face each other at least one switching element (SW1), (SW2) having a control terminal and an input and output terminal connected to the input and output terminals by the signal of the control terminal, Resistor (R3), capacitor (C1), resistor (R4) and capacitor (C2) connected in parallel, respectively, are connected in series to the control terminals of the switching elements (SW1), (SW2), respectively. (SW1, SW2) is turned on and off, the other end of the resistor (R3), (R4) is connected to the input terminal of the same switching element (SW2), (SW1) connected in series, respectively, the other end of the capacitor (C1), (C2) Are respectively connected to the input terminals of opposite switching elements (SW2) and (SW1), the oscillation frequency is determined by the RC time constant of the resistor and the capacitor, and the oscillation frequency can be easily calculated by changing the RC value.

Description

지자기 센서 펄스구동회로Geomagnetic Sensor Pulse Drive Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 따른 지자기센서의 펄스구동회로, 제5도는 본 발명에 따른 펄스구동회로의 타이밍도.4 is a pulse driving circuit of the geomagnetic sensor according to the present invention, Figure 5 is a timing diagram of the pulse driving circuit according to the present invention.

Claims (2)

각 스위치신호에 의해 펄스를 출력하는 플립플롭(FF3)와 플립플롭(FF4)를 갖는 센서 구동부(9)를 구비하여 센서구동부(9)에서 출력된 펄스로 여자코일(2)을 구동시키고 검출코일(3),(4)의 출력을 검출하는 지자기 센서의 펄스구동회로에 있어서, 상호 대향되게 마련되며 컨트롤 단자와 입출력단자를 갖고 컨트롤 단자의 신호에 의해 입출력단자가 접속되는 하나 이상의 스위칭소자(SW1),(SW2)와, 각각 병렬연결된 저항(R3)와 커패시터(C1), 저항(R4)와 커패시터(C2)가 상기 스위칭 소자(SW1),(SW2)의 컨트롤 단자에 각각 직렬연결되어 RC식정수에 의한 주기로 상기 스위칭 소자(SW1,SW2)를 온오프시키고, 상기 저항(R3),(R4)의 타단이 각각 직렬연결된 동일 스위칭소자(SW2),(SW1)의 입력단에 연결되고 캐패시터(C1),(C2)의 타단은 각각 반대 스위칭 소자(SW2), (SW1)의 입력단에 연결된 펄스발생부(8)를 구비하여 상기 각 스위칭소자(SW1),(SW2)의 입력단으로부터 소정주기의 펄스를 상기 센서구동부(9)의 각 스위치신호로 제공하는 것을 특징으로 하는 지자기 센서의 펄스구동회로.A sensor driver 9 having a flip-flop FF3 and a flip-flop FF4 for outputting a pulse by each switch signal is provided to drive the excitation coil 2 with the pulse output from the sensor driver 9 and the detection coil. In the pulse driving circuit of the geomagnetic sensor for detecting the output of (3) and (4), at least one switching element SW1 provided to face each other and having a control terminal and an input / output terminal connected to the input / output terminal by a signal of the control terminal (SW1) ), (SW2), resistor R3 and capacitor C1, resistor R4 and capacitor C2 connected in parallel with each other, are connected in series to the control terminals of the switching elements SW1 and SW2, respectively, and an RC constant The switching elements SW1 and SW2 are turned on and off at a period of time, and the other ends of the resistors R3 and R4 are connected to input terminals of the same switching element SW2 and SW1 connected in series, respectively, and a capacitor C1. The other end of (C2) is connected to the input terminal of the opposite switching element (SW2), (SW1), respectively. Pulse driving section of the geomagnetic sensor characterized in that it is provided with a pulse generator 8 to provide a pulse of a predetermined period from the input terminal of each of the switching elements (SW1), (SW2) as each switch signal of the sensor driver (9). in. 제1항에 있어서, 상기 펄스발생부(8)는 상기 스위칭소자(SW1),(SW2) 각각의 입력단에 일단이 연결되고 타단은 전원(Vcc)에 연결되는 저항(R1),(R2)를 더 구비한 것을 특징으로 하는 지자기 센서의 펄스구동회로.2. The pulse generator of claim 1, wherein one end of the pulse generator 8 is connected to an input terminal of each of the switching elements SW1 and SW2, and the other end of the resistors R1 and R2 are connected to a power source Vcc. Pulse drive circuit of the geomagnetic sensor characterized in that it further comprises. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017834A 1995-06-28 1995-06-28 Pulse control circuit of the geomagnetic sensor KR0147755B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950017834A KR0147755B1 (en) 1995-06-28 1995-06-28 Pulse control circuit of the geomagnetic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950017834A KR0147755B1 (en) 1995-06-28 1995-06-28 Pulse control circuit of the geomagnetic sensor

Publications (2)

Publication Number Publication Date
KR970004319A true KR970004319A (en) 1997-01-29
KR0147755B1 KR0147755B1 (en) 1998-12-01

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KR1019950017834A KR0147755B1 (en) 1995-06-28 1995-06-28 Pulse control circuit of the geomagnetic sensor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100752734B1 (en) * 2006-06-12 2007-08-28 삼성전기주식회사 Running clock operator of geomagnetic sensor and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100752734B1 (en) * 2006-06-12 2007-08-28 삼성전기주식회사 Running clock operator of geomagnetic sensor and method thereof

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KR0147755B1 (en) 1998-12-01

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