JPS6464412A - Circuit for inverting signal polarity - Google Patents

Circuit for inverting signal polarity

Info

Publication number
JPS6464412A
JPS6464412A JP62222798A JP22279887A JPS6464412A JP S6464412 A JPS6464412 A JP S6464412A JP 62222798 A JP62222798 A JP 62222798A JP 22279887 A JP22279887 A JP 22279887A JP S6464412 A JPS6464412 A JP S6464412A
Authority
JP
Japan
Prior art keywords
current
circuit
output
signal
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.)
Granted
Application number
JP62222798A
Other languages
Japanese (ja)
Other versions
JPH0736495B2 (en
Inventor
Hiroshi Fujita
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP62222798A priority Critical patent/JPH0736495B2/en
Publication of JPS6464412A publication Critical patent/JPS6464412A/en
Publication of JPH0736495B2 publication Critical patent/JPH0736495B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To realize the amplitude of the output signal more than of 1/2 power source voltage by adding a current generating circuit to be controlled with a polarity inverting signal and to generate a prescribed direct current. CONSTITUTION:A current positive and negative switching circuit 13 and a current generating circuit 14 are controlled by a voltage to be impressed to a polarity inversion control terminal 15. When a current output B of the circuit 13 is a positive current signal (an arrow B1 direction,) an output C of the circuit 14 goes to be a negative current (an arrow C2 direction) and a direct current component is negated by adding these outputs with a computing element 16. Then, a voltage signal output to pass through a current/voltage converter 17 obtaines the large amplitude with a bias point arbitrarily set in advance as a center. On the other hand, when the control voltage of the polarity inversion control terminal 15 is switched and the current output B of the circuit 13 is the negative current signal, the output C of the circuit 14 goes to be the positive current of a direct current and added by the computing element 16. Then, the direct current component is negated and the large output amplitude can be obtained.
JP62222798A 1987-09-03 1987-09-03 Signal polarity inversion circuit Expired - Fee Related JPH0736495B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62222798A JPH0736495B2 (en) 1987-09-03 1987-09-03 Signal polarity inversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62222798A JPH0736495B2 (en) 1987-09-03 1987-09-03 Signal polarity inversion circuit

Publications (2)

Publication Number Publication Date
JPS6464412A true JPS6464412A (en) 1989-03-10
JPH0736495B2 JPH0736495B2 (en) 1995-04-19

Family

ID=16788061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62222798A Expired - Fee Related JPH0736495B2 (en) 1987-09-03 1987-09-03 Signal polarity inversion circuit

Country Status (1)

Country Link
JP (1) JPH0736495B2 (en)

Also Published As

Publication number Publication date
JPH0736495B2 (en) 1995-04-19

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees