JPH0350991U - - Google Patents
Info
- Publication number
- JPH0350991U JPH0350991U JP10971589U JP10971589U JPH0350991U JP H0350991 U JPH0350991 U JP H0350991U JP 10971589 U JP10971589 U JP 10971589U JP 10971589 U JP10971589 U JP 10971589U JP H0350991 U JPH0350991 U JP H0350991U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- voltage
- circuit
- generates
- alarm 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
Links
Landscapes
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の一実施例を示す回路構成図で
ある。
図中、Ｐ，Ｎ……直流電源ライン、２……放電
用抵抗、３……パワートランジスタ、４……電圧
検出回路、５，６……サンプリング抵抗、８，９
……基準電圧発生回路、１０……第１の比較回路
（判定回路）、１２……タイマ回路、１３……第
２の比較回路（信号発生回路）を示す。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. In the figure, P, N... DC power supply line, 2... Discharge resistor, 3... Power transistor, 4... Voltage detection circuit, 5, 6... Sampling resistor, 8, 9
. . . reference voltage generation circuit, 10 . . . first comparison circuit (judgment circuit), 12 . . . timer circuit, 13 .
Claims (1)
の放電用抵抗及びスイツチング素子の直列回路を
接続して成り、前記直流電源ライン間の電圧が設
定値を越えたときに前記スイツチング素子を導通
させる構成の回生電力放電回路において、前記ス
イツチング素子と並列に接続されたサンプリング
用抵抗によりそのスイツチング素子に印加される
電圧を検出する電圧検出回路と、この電圧検出回
路による検出電圧に基づいて前記スイツチング素
子のオン状態を判定する判定回路と、この判定回
路により判定された前記スイツチング素子のオン
期間が所定時間以上継続したときに第１の警報信
号を発生するタイマ回路と、前記電圧検出回路に
よる検出電圧が所定の基準電圧より高い場合に第
２の警報信号を発生する信号発生回路とを具備し
たことを特徴とする回生電力放電回路。 A regeneration system comprising a series circuit of a resistor for discharging regenerative power and a switching element connected between the DC power lines of an inverter device, and making the switching element conductive when the voltage between the DC power lines exceeds a set value. In the power discharge circuit, a voltage detection circuit detects the voltage applied to the switching element by a sampling resistor connected in parallel with the switching element, and the ON state of the switching element is determined based on the voltage detected by the voltage detection circuit. a timer circuit that generates a first alarm signal when the ON period of the switching element determined by the determination circuit continues for a predetermined time or more; A regenerative power discharge circuit comprising: a signal generation circuit that generates a second alarm signal when the voltage is higher than a reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10971589U JPH0350991U (en) | 1989-09-21 | 1989-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10971589U JPH0350991U (en) | 1989-09-21 | 1989-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0350991U true JPH0350991U (en) | 1991-05-17 |
Family
ID=31658286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10971589U Pending JPH0350991U (en) | 1989-09-21 | 1989-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017055620A (en) * | 2015-09-11 | 2017-03-16 | 日産自動車株式会社 | Power converter |
-
1989
- 1989-09-21 JP JP10971589U patent/JPH0350991U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017055620A (en) * | 2015-09-11 | 2017-03-16 | 日産自動車株式会社 | Power converter |
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