JPS5554449A - Voltage detector of variable input resistance type - Google Patents

Voltage detector of variable input resistance type

Info

Publication number
JPS5554449A
JPS5554449A JP8457778A JP8457778A JPS5554449A JP S5554449 A JPS5554449 A JP S5554449A JP 8457778 A JP8457778 A JP 8457778A JP 8457778 A JP8457778 A JP 8457778A JP S5554449 A JPS5554449 A JP S5554449A
Authority
JP
Japan
Prior art keywords
input resistance
resistance
voltage detector
sensitivity
point
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
Application number
JP8457778A
Other languages
Japanese (ja)
Other versions
JPS62465B2 (en
Inventor
Hideo Nagano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP8457778A priority Critical patent/JPS5554449A/en
Publication of JPS5554449A publication Critical patent/JPS5554449A/en
Publication of JPS62465B2 publication Critical patent/JPS62465B2/ja
Granted legal-status Critical Current

Links

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To obtain a variable input resistance type voltage detector which can easily be manufactured and has accurate detection performance by realizing both high-sensitivity and low-sensitivity detection operations by changing an input resistance in value only by depressing a push button.
CONSTITUTION: Even if a finger comes in contact with electrode palte 4 with switches S1 and S2 unpushed, insulation from point E is maintained. At this time, since protective resistance R1 is smaller in value than current control resistor RG and S1 is OFF, voltage-dividing resistance R2 can be considered to be infinite, so that voltage detection sensitivity will be high. With push buttons S1 and S2 depressed, resistance R2 is interposed in parallel between G and E of voltage detection circuit 6 and point E is led to electrode plate 4 through switch S2. At this time, since metal push button 3 is fitted to the leaf spring of switch S2, two fingers where button 3 and electrode 4 are nipped serve as a conductor between point E and the earth and the input resistance lowers. In this way, the variable input resistance type voltage detector can be obtained which can easily be fabricated and has accurate detection performance.
COPYRIGHT: (C)1980,JPO&Japio
JP8457778A 1978-07-13 1978-07-13 Voltage detector of variable input resistance type Granted JPS5554449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8457778A JPS5554449A (en) 1978-07-13 1978-07-13 Voltage detector of variable input resistance type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8457778A JPS5554449A (en) 1978-07-13 1978-07-13 Voltage detector of variable input resistance type

Publications (2)

Publication Number Publication Date
JPS5554449A true JPS5554449A (en) 1980-04-21
JPS62465B2 JPS62465B2 (en) 1987-01-08

Family

ID=13834518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8457778A Granted JPS5554449A (en) 1978-07-13 1978-07-13 Voltage detector of variable input resistance type

Country Status (1)

Country Link
JP (1) JPS5554449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02135872U (en) * 1989-04-17 1990-11-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02135872U (en) * 1989-04-17 1990-11-13

Also Published As

Publication number Publication date
JPS62465B2 (en) 1987-01-08

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