JPS6468032A - Existing/standby switching system for power amplifier - Google Patents

Existing/standby switching system for power amplifier

Info

Publication number
JPS6468032A
JPS6468032A JP62226035A JP22603587A JPS6468032A JP S6468032 A JPS6468032 A JP S6468032A JP 62226035 A JP62226035 A JP 62226035A JP 22603587 A JP22603587 A JP 22603587A JP S6468032 A JPS6468032 A JP S6468032A
Authority
JP
Japan
Prior art keywords
switch
standby
power amplifier
power source
signal
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
Application number
JP62226035A
Other languages
Japanese (ja)
Inventor
Yoshiaki Doi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62226035A priority Critical patent/JPS6468032A/en
Publication of JPS6468032A publication Critical patent/JPS6468032A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE:To eliminate the need for a power source only for a switch, a logic circuit for sequence control, and standby route terminating dummy load of the switch by switching and using the power source of a standby power amplifier for the switch in common. CONSTITUTION:If trouble occurs in an existing power amplifier 3, an alarm signal is sent to a transmission system control board 9. The logic circuit in the transmission system control board 9 operates a switch 10 by a power source 10 in accordance with this signal to switch the transmission route to the standby system. That is, the output of a standby power amplifier 5 is connected to an antenna 11. When a response signal of switching completion is sent from the switch 10, the transmission system control board 9 receives this signal and controls a switch 8 to connect the power source 6 to the standby power amplifier 5. Thus, the sequence control is unnecessary, and the logic circuit is simplified, and standby route terminating large-capacity terminator dummy load of the switch is unnecessary.
JP62226035A 1987-09-08 1987-09-08 Existing/standby switching system for power amplifier Pending JPS6468032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226035A JPS6468032A (en) 1987-09-08 1987-09-08 Existing/standby switching system for power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226035A JPS6468032A (en) 1987-09-08 1987-09-08 Existing/standby switching system for power amplifier

Publications (1)

Publication Number Publication Date
JPS6468032A true JPS6468032A (en) 1989-03-14

Family

ID=16838753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226035A Pending JPS6468032A (en) 1987-09-08 1987-09-08 Existing/standby switching system for power amplifier

Country Status (1)

Country Link
JP (1) JPS6468032A (en)

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