JPH029985U - - Google Patents

Info

Publication number
JPH029985U
JPH029985U JP8737588U JP8737588U JPH029985U JP H029985 U JPH029985 U JP H029985U JP 8737588 U JP8737588 U JP 8737588U JP 8737588 U JP8737588 U JP 8737588U JP H029985 U JPH029985 U JP H029985U
Authority
JP
Japan
Prior art keywords
voltage
power source
commercial
emitting diode
color light
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
JP8737588U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP8737588U priority Critical patent/JPH029985U/ja
Publication of JPH029985U publication Critical patent/JPH029985U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示した回路図；第
２図は予備電源灯の動作を示した説明図である。 １０：電源トランス、１８，２３：ダイオード
ブリツジ、２２：ＮＶリレー、２４：バツテリイ
ー（予備電源）、２５：第１の電圧検出回路、２
６：第２の電圧検出回路、２７：コンパレータ、
３０：ＣＰＵ、３２：予備電源試験スイツチ、３
４，３４，４６：インバータ、４０：２色発光ダ
イオード、４２：交流電源灯、４４：予備電源灯
、４８：試験リレー。 FIG. 1 is a circuit diagram showing an embodiment of the present invention; FIG. 2 is an explanatory diagram showing the operation of a standby power lamp. 10: Power transformer, 18, 23: Diode bridge, 22: NV relay, 24: Battery (backup power supply), 25: First voltage detection circuit, 2
6: second voltage detection circuit, 27: comparator,
30: CPU, 32: Backup power supply test switch, 3
4, 34, 46: inverter, 40: two-color light emitting diode, 42: AC power light, 44: standby power light, 48: test relay.

Claims (1)

【実用新案登録請求の範囲】 商用交流電源を整流して規定の直流電圧を出力
し、前記商用交流電源の停止時に予備電源に切換
える警報受信機に於いて、 表示色の異なる商用交流電源表示部と予備電源
表示部を備えた２色発光ダイオードと； 前記商用交流電源が正常の場合は前記２色発光
ダイオードの商用電源表示部を点灯し、前記予備
電源に切換つた場合には前記２色発光ダイオード
の予備電源表示部を点灯する第１の制御手段と； 直流出力電圧が第１の規定電圧以下に低下した
ことを検出する第１の電圧検出部と； 直流出力電圧が前記第１の規定電圧より低い第
２の規定電圧以下に低下したことを検出する第２
電圧検出部と； 前記予備電源に切換つた状態で前記第１の電圧
検出部の検出出力が得られた時に前記２色発光ダ
イオードの予備電源表示部を点灯から点滅に切換
えると共に、前記第２の電圧検出部の検出出力が
得られた時に前記２色発光ダイオードの予備電源
表示部を点滅から消灯に切換える第２の制御手段
と； を設けたことを特徴とする警報受信機の電源表
示装置。[Claims for Utility Model Registration] In an alarm receiver that rectifies a commercial AC power source to output a specified DC voltage and switches to a standby power source when the commercial AC power source stops, a commercial AC power display section with different display colors. and a two-color light-emitting diode having a standby power indicator; when the commercial AC power source is normal, the commercial power indicator of the two-color light-emitting diode lights up, and when switched to the standby power source, the two-color light emitting diode lights up; a first control means for lighting up a backup power display section of the diode; a first voltage detection section for detecting that the DC output voltage has decreased below the first specified voltage; a second voltage that detects that the voltage has dropped below a second specified voltage that is lower than the voltage;
a voltage detecting section; when a detection output of the first voltage detecting section is obtained in the state of switching to the standby power source, switching the standby power display section of the two-color light emitting diode from lighting to blinking; A power display device for an alarm receiver, comprising: a second control means for switching the standby power display section of the two-color light emitting diode from blinking to off when a detection output from the voltage detection section is obtained.
JP8737588U 1988-06-30 1988-06-30 Pending JPH029985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8737588U JPH029985U (en) 1988-06-30 1988-06-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8737588U JPH029985U (en) 1988-06-30 1988-06-30

Publications (1)

Publication Number Publication Date
JPH029985U true JPH029985U (en) 1990-01-23

Family

ID=31311991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8737588U Pending JPH029985U (en) 1988-06-30 1988-06-30

Country Status (1)

Country Link
JP (1) JPH029985U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157192A (en) * 1974-11-14 1976-05-19 Omron Tateisi Electronics Co KEIHO SOCHI
JPS581289A (en) * 1981-06-25 1983-01-06 シャープ株式会社 Detection and indication of battery voltage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157192A (en) * 1974-11-14 1976-05-19 Omron Tateisi Electronics Co KEIHO SOCHI
JPS581289A (en) * 1981-06-25 1983-01-06 シャープ株式会社 Detection and indication of battery voltage

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