JPS6031672U - Microcontroller frequency automatic discrimination circuit - Google Patents
Microcontroller frequency automatic discrimination circuitInfo
- Publication number
- JPS6031672U JPS6031672U JP12394483U JP12394483U JPS6031672U JP S6031672 U JPS6031672 U JP S6031672U JP 12394483 U JP12394483 U JP 12394483U JP 12394483 U JP12394483 U JP 12394483U JP S6031672 U JPS6031672 U JP S6031672U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- microcomputer
- output
- counter circuit
- power supply
- 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
Landscapes
- Electric Clocks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のマイコンの周波数自動判別回路の周波数
自動判別タイミングチャート図、第２図は本考案による
同一実施回路図である。
Ｄ・・・・・・直流定電圧回路、Ｅ・・・・・・波形整
形回路、Ｆ・・・・・・カウンター回路、Ｇ・・・・・
・リセット回路、１４・・・・・・マイコン。FIG. 1 is a frequency automatic discrimination timing chart of a conventional frequency automatic discrimination circuit of a microcomputer, and FIG. 2 is a circuit diagram of the same implementation according to the present invention. D: DC constant voltage circuit, E: Waveform shaping circuit, F: Counter circuit, G:
・Reset circuit, 14...Microcomputer.
Claims (1)
用電源の周期に同期したパルスを用い、さらに商用電源
の周波数を自動判別しうるマイコンの周波数自動判別回
路において、商用電源の周期に同期したパルスを廃生さ
せる波形整形回路Ｅと前記同期パルスをカウントし任意
の一定数に達した時点で信号を出力するカウンター回路
Ｆと、リセット回路Ｇと、マイコン１４とから成り、前
記波形整形回路Ｅ出力をカウンター回路Ｆとマイコン１
４に印加し、前記カウンター回路Ｆ出力をマイコン１４
に印加し、前記リセット回路Ｇ出力をカウンター回路Ｆ
とマイコン１４に印加すると共に、マイコン１４の動作
は前記カウンター回路Ｆ出力信号により前記波形整形回
路Ｅ出力信号から電源の周波数を自動判別させるように
したことを特徴とするマイコンの周波数自動判別回路。In addition to processing time internally, the reference time is synchronized with the cycle of the commercial power supply using a pulse that is synchronized with the cycle of the commercial power supply. The waveform shaping circuit E consists of a waveform shaping circuit E that discards pulses, a counter circuit F that counts the synchronizing pulses and outputs a signal when an arbitrary fixed number is reached, a reset circuit G, and a microcomputer 14. Output to counter circuit F and microcomputer 1
4, and the output of the counter circuit F is sent to the microcomputer 14.
and the reset circuit G output is applied to the counter circuit F.
is applied to the microcomputer 14, and the operation of the microcomputer 14 is such that the frequency of the power supply is automatically determined from the output signal of the waveform shaping circuit E using the output signal of the counter circuit F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12394483U JPS6031672U (en) | 1983-08-10 | 1983-08-10 | Microcontroller frequency automatic discrimination circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12394483U JPS6031672U (en) | 1983-08-10 | 1983-08-10 | Microcontroller frequency automatic discrimination circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031672U true JPS6031672U (en) | 1985-03-04 |
| JPS637900Y2 JPS637900Y2 (en) | 1988-03-08 |
Family
ID=30282730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12394483U Granted JPS6031672U (en) | 1983-08-10 | 1983-08-10 | Microcontroller frequency automatic discrimination circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031672U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6286184U (en) * | 1985-11-20 | 1987-06-02 | ||
| JPS62130586U (en) * | 1986-02-08 | 1987-08-18 | ||
| JPS62165976U (en) * | 1986-04-12 | 1987-10-21 | ||
| JPS62202286U (en) * | 1986-06-16 | 1987-12-23 | ||
| JPS638885U (en) * | 1986-07-03 | 1988-01-21 | ||
| JPS63226396A (en) * | 1986-10-31 | 1988-09-21 | 三洋電機株式会社 | Washing machine |
| JPS642693A (en) * | 1987-02-04 | 1989-01-06 | Sanyo Electric Co Ltd | Washing machine |
-
1983
- 1983-08-10 JP JP12394483U patent/JPS6031672U/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6286184U (en) * | 1985-11-20 | 1987-06-02 | ||
| JPH0411666Y2 (en) * | 1985-11-20 | 1992-03-23 | ||
| JPS62130586U (en) * | 1986-02-08 | 1987-08-18 | ||
| JPS62165976U (en) * | 1986-04-12 | 1987-10-21 | ||
| JPS62202286U (en) * | 1986-06-16 | 1987-12-23 | ||
| JPS638885U (en) * | 1986-07-03 | 1988-01-21 | ||
| JPH0411667Y2 (en) * | 1986-07-03 | 1992-03-23 | ||
| JPS63226396A (en) * | 1986-10-31 | 1988-09-21 | 三洋電機株式会社 | Washing machine |
| JPS642693A (en) * | 1987-02-04 | 1989-01-06 | Sanyo Electric Co Ltd | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS637900Y2 (en) | 1988-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59182747U (en) | interface circuit | |
| JPS6031672U (en) | Microcontroller frequency automatic discrimination circuit | |
| JPS6031673U (en) | Microcomputer frequency automatic discrimination circuit | |
| JPS59182741U (en) | Microcomputer reset circuit | |
| JPS583641U (en) | pulse delay circuit | |
| JPS5868741U (en) | timing circuit | |
| JPS5963581U (en) | frequency discrimination circuit | |
| JPS58101232U (en) | microcomputer | |
| JPS58117521U (en) | Power supply abnormality detection circuit | |
| JPS60129691U (en) | clock display circuit | |
| JPS59164382U (en) | control monitoring system | |
| JPS6050565U (en) | Field discrimination circuit | |
| JPS60160662U (en) | pedestal clamp circuit | |
| JPS58165677U (en) | window comparator | |
| JPS6077074U (en) | FM demodulation circuit with dropout detection function | |
| JPS5819540U (en) | timed circuit | |
| JPS59142828U (en) | Microcomputer reset circuit | |
| JPS583683U (en) | Tone signal detection circuit | |
| JPS5822085U (en) | Electric compressor drive control circuit | |
| JPS6085434U (en) | pulse delay device | |
| JPS58522U (en) | Pulse width shaping circuit | |
| JPS5961667U (en) | DC component regeneration circuit | |
| JPS5996944U (en) | counter integrated circuit device | |
| JPS59119668U (en) | Frame pulse generation circuit | |
| JPS59185669U (en) | sample hold circuit |