MP022 [ETC]

Low Cost Iron Safety Timer; 低成本铁安全定时器


型号：	MP022
厂家：	ETC
描述：	Low Cost Iron Safety Timer 低成本铁安全定时器
文件：	总2页 (文件大小：26K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SIMPLECIRCUIT™

Low Cost Iron Safety Timer

FIGURE 1:

FLOWCHART

Author:

Jason Wolfson

Lipider Corp.

Duxbury ,MA

USA

Power-up

Turn on Triac

email: jason@ultrnet.com

INTRODUCTION

Zero Detect?

Clothes irons and curling irons are high powered appli-

ances that can start house ﬁres. Many times after leav-

ing for work you forget if you shut-off or unplug the

dangerous appliances. This timer will allow the appli-

ance to have power for only a ﬁxed amount of time

(without motion/use).Then it will shut-off power. A reset

switch will restart the appliance.

Yes

Decrement time

Time-out?

Yes

Turn off

Check switch?

Yes

FIGURE 2:

SCHEMATIC

Vcc

GP2/TOCKI

Load

GP3

GP1

PIC12C508

Microchip Technology Incorporated, has been granted a nonexclusive, worldwide license to reproduce, publish and distribute all submitted materials, in

either original or edited form. The author has afﬁrmed that this work is an original, unpublished work and that he/she owns all rights to such work. All

property rights, such as patents, copyrights and trademarks remain with the author.

1997 Microchip Technology Inc.

DS40160A/3_022-page 3-15

SimpleCircuit™

DS40160A/3_022-page 3-16

1997 Microchip Technology Inc.