JPH046231U - - Google Patents
Info
- Publication number
- JPH046231U JPH046231U JP4460390U JP4460390U JPH046231U JP H046231 U JPH046231 U JP H046231U JP 4460390 U JP4460390 U JP 4460390U JP 4460390 U JP4460390 U JP 4460390U JP H046231 U JPH046231 U JP H046231U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- supply circuit
- signal
- mos type
- 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
Links
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
Landscapes
- Power Sources (AREA)
- Emergency Protection Circuit Devices (AREA)
- Noise Elimination (AREA)
Description
第１図は、本考案にかかるラツチアツプ防止回
路の具体的な構成図、第２図は、第１図に示した
回路によつて供給される電源電圧と信号電圧との
立ち上がり及び立ち下がり特性線図、第３図は、
従来の電源回路及び信号電源回路を示す図、第４
図は、第３図に示した回路においてラツチアツプ
が発生する場合の各電源電圧の立ち上がり特性を
示す図である。
１０……電源回路、１５……信号電源回路、１
８……制限回路。
FIG. 1 is a specific configuration diagram of the latch-up prevention circuit according to the present invention, and FIG. 2 is a rising and falling characteristic curve of the power supply voltage and signal voltage supplied by the circuit shown in FIG. 1. Figure 3 is
Diagram 4 showing a conventional power supply circuit and signal power supply circuit
This figure shows the rising characteristics of each power supply voltage when a latch-up occurs in the circuit shown in FIG. 3. 10...Power supply circuit, 15...Signal power supply circuit, 1
8...Limiting circuit.
Claims (1)
１０と、当該ＭＯＳ型集積回路の信号電圧を形成
する信号電源回路１５とを有し、前記ＭＯＳ型集
積回路の起動時には、前記信号電源回路１５から
供給される信号電圧が前記電源回路１０から供給
される電源電圧よりも常に小さい値を維持しなが
ら立ち上がるようにする一方、前記ＭＯＳ型集積
回路の停止時には、前記信号電源回路１５から供
給される信号電圧が前記電源回路１０から供給さ
れる電源電圧よりも常に小さい値を維持しながら
立ち下がるようにする制限回路１８を前記信号電
源回路１５に接続したことを特徴とするラツチア
ツプ防止回路。 It has a power supply circuit 10 for operating a MOS type integrated circuit, and a signal power supply circuit 15 for forming a signal voltage of the MOS type integrated circuit, and when the MOS type integrated circuit is activated, the signal voltage is supplied from the signal power supply circuit 15. The signal voltage supplied from the signal power supply circuit 15 rises while always maintaining a value smaller than the power supply voltage supplied from the power supply circuit 10, while when the MOS type integrated circuit is stopped, the signal voltage supplied from the signal power supply circuit 15 A latch-up prevention circuit characterized in that a limiting circuit 18 is connected to the signal power supply circuit 15 so that the voltage falls while always maintaining a value smaller than the power supply voltage supplied from the power supply circuit 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044603U JP2517807Y2 (en) | 1990-04-27 | 1990-04-27 | Latch-up prevention circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044603U JP2517807Y2 (en) | 1990-04-27 | 1990-04-27 | Latch-up prevention circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046231U true JPH046231U (en) | 1992-01-21 |
| JP2517807Y2 JP2517807Y2 (en) | 1996-11-20 |
Family
ID=31558056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990044603U Expired - Lifetime JP2517807Y2 (en) | 1990-04-27 | 1990-04-27 | Latch-up prevention circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517807Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586541U (en) * | 1982-06-09 | 1983-01-17 | 富士通株式会社 | Package power supply circuit |
| JPS634129U (en) * | 1986-06-23 | 1988-01-12 |
-
1990
- 1990-04-27 JP JP1990044603U patent/JP2517807Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586541U (en) * | 1982-06-09 | 1983-01-17 | 富士通株式会社 | Package power supply circuit |
| JPS634129U (en) * | 1986-06-23 | 1988-01-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2517807Y2 (en) | 1996-11-20 |
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