JPH0345089U - - Google Patents

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Publication number
JPH0345089U
JPH0345089U JP10423189U JP10423189U JPH0345089U JP H0345089 U JPH0345089 U JP H0345089U JP 10423189 U JP10423189 U JP 10423189U JP 10423189 U JP10423189 U JP 10423189U JP H0345089 U JPH0345089 U JP H0345089U
Authority
JP
Japan
Prior art keywords
inverter
signal
inputs
difference detector
phase
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
JP10423189U
Other languages
Japanese (ja)
Other versions
JPH0746071Y2 (en
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 JP1989104231U priority Critical patent/JPH0746071Y2/en
Publication of JPH0345089U publication Critical patent/JPH0345089U/ja
Application granted granted Critical
Publication of JPH0746071Y2 publication Critical patent/JPH0746071Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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す全体構成図、
第２図は第１図の主要部詳細図、第３図はタイム
チヤート図、第４図は従来のものを説明するため
の運転パターン特性図である。 １……常用インバータ、２……予備インバータ
、３……切換器、４……電動機、１１Ｅ……基準
位相発生器、１Ｅ，２Ｅ……ＰＷＭ制御信号発生
回路、１２Ｅ……位相差検出器、１３Ｅ……リミ
ツタ回路、１４Ｅ……比較器。 FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a detailed view of the main part of FIG. 1, FIG. 3 is a time chart, and FIG. 4 is an operation pattern characteristic diagram for explaining the conventional one. 1... Regular inverter, 2... Standby inverter, 3... Switch, 4... Electric motor, 11E... Reference phase generator, 1E, 2E... PWM control signal generation circuit, 12E... Phase difference detector, 13E...Limiter circuit, 14E...Comparator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 常用インバータに予備インバータを備えたトラ
バースインバータにおいて、前記常用インバータ
に、基準位相発生器からの信号と、前記予備イン
バータに有するＰＷＭ制御信号発生回路の信号を
入力する位相差検出器と、この出力信号を入力す
るリミツタ回路と、このリミツタ回路の設定値に
より作用する比較器などからなり、予備インバー
タと常用インバータとを切換える際に、両インバ
ータの周波数が合致した後、ある特定の禁止区間
を設けた位相合せを実施し、位相合致後指示され
た区間で切換えるよう構成したことを特徴とする
インバータの自動切換回路。 In a traverse inverter in which a regular inverter is provided with a backup inverter, a phase difference detector that inputs a signal from a reference phase generator and a signal from a PWM control signal generation circuit included in the backup inverter to the regular inverter; and an output signal of the phase difference detector. It consists of a limiter circuit that inputs the value of An automatic switching circuit for an inverter, characterized in that it is configured to perform phase matching and to switch in a designated interval after phase matching.
JP1989104231U 1989-09-05 1989-09-05 Inverter automatic switching circuit Expired - Lifetime JPH0746071Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989104231U JPH0746071Y2 (en) 1989-09-05 1989-09-05 Inverter automatic switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989104231U JPH0746071Y2 (en) 1989-09-05 1989-09-05 Inverter automatic switching circuit

Publications (2)

Publication Number Publication Date
JPH0345089U true JPH0345089U (en) 1991-04-25
JPH0746071Y2 JPH0746071Y2 (en) 1995-10-18

Family

ID=31653032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989104231U Expired - Lifetime JPH0746071Y2 (en) 1989-09-05 1989-09-05 Inverter automatic switching circuit

Country Status (1)

Country Link
JP (1) JPH0746071Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008532738A (en) * 2005-03-03 2008-08-21 ニコライ，ライオネル Spray device with excellent decontamination

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914394A (en) * 1982-07-16 1984-01-25 Meidensha Electric Mfg Co Ltd Automatic switching device for inverter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914394A (en) * 1982-07-16 1984-01-25 Meidensha Electric Mfg Co Ltd Automatic switching device for inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008532738A (en) * 2005-03-03 2008-08-21 ニコライ，ライオネル Spray device with excellent decontamination

Also Published As

Publication number Publication date
JPH0746071Y2 (en) 1995-10-18

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term