Switch circuit

Automatic Lamp Control with Light Sensitive Switch
7 Feb 2008 ... The circuit above is an automatic switch which functions in absence of light.
The IC 4060 works as an oscillator and the generated signal is ...

Light Sensitive Switch with LDR + 2N2926
18 May 2007 ... Click to View Circuit Light Sensitive Switch with LDR + 2N2926
This be circuit warn when be become dark, or Light sensitive switch.

Sound SCR Switch by IC 1458 & SCR C106D
This is Sound SCR Switch Using IC 1458 & SCR C106D, It is Electronic control circuit.

Frost Alarm or Cold Activated Switch by IC 741
A simple thermistor triggered cold switch with adjustable threshold. Notes:
The thermistor used has a resistance of 15k at 25 degrees and 45k at 0 degrees ...

One Button On Off Switch by 4093 and IRFZ44
7 Feb 2008 ... The load is driven by the MOSFET IRFZ44 and 4093 AND gates
are used in the circuit. The output of the 4093 IC drives the MOSFET.

Simple Touch Switch One Shot by 4011
17 Apr 2008 ... Here is a simple touch control switch, I use IC 4011. Logic HI
at output is timer pulse delay control by C1 1S = C1 4.7uF(micro farad), ...

Voltage Controlled Switch using 555 Timer
IC 555 Circuit, Voltage Controlled Switch using 555 Timer. ...
In this circuit the 555 timer is used in a novel way, as a voltage controlled switch. ...

Capacitive Sensor(Touch switch relay) with BC337
14 Sep 2007 ... Special design for shop-windows animation Useful for many
types of touch controls Parts: R1,R2_____1M 1/4W Resistors R3,R4____47K 1/4W.

Current-Limit Switch Is Digitally Programmable
17 Dec 2007 ... Current-limit switches are virtually ubiquitous in system controls.
They provide a safe means for regulating the current delivered to a load ...

PBS Switch Debouncing by 555
17 Apr 2008 ... This circuit will remove the transient spikes and contact bounces
from a non-latching push button switch. Using a 555 timer as a monostable ...

100 Seconds Duration On Switch with Touch Control by 555
7 Feb 2008 ... This is a touch control switch which keeps the circuit on about 100 seconds
after touching the plate connected to the 2 numbered pin.

Standard Touch Switch by Gate of IC 4011
27 Apr 2008 ... This circuit uses a 4011 logic gate digital as the bases of the touch switch.
It are Standard and very easy because I used a Gate of IC 4011 ...

Touch Switch By IC 4001 & 4020
18 May 2007 ... Circuit Touch Switch By IC CD4001, CD4020 This be touch switch
be simple again the circuit. It use integrated digital circuit is important ...

High Current MOSFET Toggle Switch with Debounced Push Button
24 Apr 2007 ... This circuit was adapted from the Toggle Switch Debounced Pushbutton
by John Lundgren. It is particularly useful in controlling a load from ...

Autoformer Switch-Mode Power Supply
18 Feb 2008 ... This is a small 2*25 (actually, 2*50) WPC amplifier with 3-order
crossover stage (configurable as LP or HP). Of particular interest is the ...
CMOS 4013 Switch
30 Jul 2008 ... The voltage generated by a piezo transducer can activate a digital circuit.
One may build a simple demonstration switch from a piezo ...

Switch-Mode Power Converters: Design and Analysis
14 Nov 2007 ... This book introduces an innovative, highly analytical approach to symbolic,
closed-form solutions for switched-mode power converter circuits ...

Touch Switch using digital IC
7 Dec 2008 ... If friends seek touch switch Circuit model to be simple.
I begs for to advise this circuit, use integrated digital circuit number IC 4011 ...

Switch-Mode LED Backlight by MAX1698
22 Mar 2008 ... White-LED backlights are gaining acceptance because they
offer higher reliability and simpler drive circuitry than those based on CCFL and ...

12V 10A Dark Activated Switch by LM324
3 Oct 2007 ... The circuit is a combination manual switch and automatic dark-activated switch.
It is designed to control up to 10 amps of 12V lights.

555 timer as a switch-mode power supply
27 Dec 2007 ... Most switch-mode power supplies rely on a PWM
(pulse-width-modulated) output that is controlled via voltage feedback.

Temperature Window switch by IC 741
16 Oct 2007 ... This circuit, is basically a resistance sensing window switch,
except that the resistor takes the form of an NTC thermistor and ...

Bounceless Switch by IC 555
Bounceless Switch by IC 555. ... This is circuit Bounceless Switch , Use IC 555 Timer for Easy
Timer circuit. Output pin 3 pluse 0.1s. Control by push S1. ...

Opto-Thermo Control Relay Switch with IC 741
18 May 2007 ... Circuit Opto-Thermo Control Relay Switch with IC 741
This be Electronic switch circuit is onely. Which work with the light and the ...

Light Relay Switch By BC547 & BC337
This Circuit is easy, Light Relay Switch By BC547 & BC337. Circuit Light Relay Switch
By BC547 & BC337 PCB Light Relay.

Fairchild Power Switch
18 Mar 2008 ... The PWM controller features integrated oscillator to be synchronized
with the external sync signal, under voltage lockout, optimized gate ...

Circuit Lighting : Light Sensitive Switch with LDR + 2N2926
Circuit Lighting , Light Sensitive Switch with LDR + 2N2926.

IC 4049 Bounceless Switch
This is Bounceless Switch using IC 4049 , It is Electronic control circuit.

555 IC Timer control relay Switch
18 May 2007 ... Click to View Circuit 555 IC Timer control relay Switch This the circuit sets
the time to are simple one that interesting , because use IC ...

Ultrasonic circuit

Ultrasonic Range Meter by PIC16F873
8 Jan 2008 ... This circuit is measuring the range to an object by using ultrasonic
transmitter and ultrasonic receiver. The distance is calculated by PIC ...

Ultrasonic Pest Repellent by CD4013
27 Oct 2008 ... It is well know that pests like rats, mice etc are repelled by ultrasonic
frequency in the range of 30 kHz to 50 kHz.

Ultrasonic Parking Sonar by 4017
6 Feb 2008 ... It works on the sonar principle, sending an ultrasound burst and listening for
first echo. The burst generated by the oscillator built ...

Ultrasonic Parking Sonar by 40106
5 Oct 2007 ... Feautures: * automatic switch on on rear gear * led-bargraph display
* audible bleep on last led * good old design style, no.

Timer circuit

This is timer circuit, , which compose the circuit controls, delay the work.
When expire warn or use control other get. The majority is will the circuit is simple,
then build not difficult. For example NE555 integrated circuit leads come to are usable,
The circuit delays with the transistor and other again many the circuit.

555 Asymmetric Timer
A simple astable timer made with the 555, the mark (on) and space (off)
values may be set independently. The timing chain consists of resistors Ra, ...

555 Timer 5 to 30 Minute
However you must use the CMOS type 555 timer designated the 7555,
a normal 555 timer will not work here due to the resistor values. ...

Timer Plus Relay by IC 555
Timer Plus Relay by IC 555. ... Use IC 555 Timer (HOT IC) and Relay 6V ,
Volt supply 9V. R1 and C1 control timer relay 11 S. Trigger circuit pin 2 to switch ...

Voltage Controlled Switch using 555 Timer
IC 555 Circuit, Voltage Controlled Switch using 555 Timer. ... In this circuit the 555 timer
is used in a novel way, as a voltage controlled switch. ...

Car Burglar Alarm timer delay using NE556
12 Jan 2009 ... Car Burglar Alarm timer alarm system circuit , model to economize.
This circuit convenients for to set up in an automobile. usually switch ...

One - Shot Timer by IC 555
This is digital circuit, It is One - Shot Timer make by IC 555. Power supply 5-15V, Output pin 3,
Input pin 2 Trigger input. One - Shot Timer by IC 555.

Astable Timer with PIC 12F629 - 12F675
5 Jun 2009 ... This software functions as a long period astable mutivibrator.
The mark and space period can be set from 1 second up to a maximum 65535 ...

PIC16F628 Digital Clock Timer
1 Feb 2008 ... This clock timer uses a PIC16F628 microcontroller to display 3 and 1/2 digit
time and control an external load. It can be programmed to time ...

Basic Timer By IC Quad Timer LM558
23 Jul 2007 ... Basic Timer By IC Quad Timer 558 Today I begs for to advise
the circuit timer the foundation. By use the integrated circuit number LM558 (IC ...

RS - Flip-Flop Made With A LM556 Timer
5 Sep 2009 ... The circuit on this page is for a hybrid - SET / RESET type of
logic Flip-Flop that is constructed from an LM556 - Dual Timer integrated ...

Power Saver & Timer Kit
12 Sep 2009 ... This little timer kit can be easily added to any existing project
to allow for automatic shutoff. Tons of applications; heating, cooling, ...

D - Flip-Flop Made With A LM556 Timer
23 Aug 2009 ... This circuit is a hybrid - D type Flip-Flop that is constructed from an LM556 -
Dual Timer integrated circuit. The circuit is essentially a ...

One-Shot By IC Quad Timer 558
23 Jul 2007 ... One-Shot By IC Quad Timer LM558 When mention the circuit One Shot friends
at take an interest digital side may know good that how much is it ...

ZN1034E Timer
This entry was posted on Sunday, May 20th, 2007 at 3:23 pm and is filed under Audio - Alarm,
Circuit, Timer. You can follow any responses to this entry ...

Relay Timer switch By IC 555 and 741
29 Aug 2007 ... In Fig.1 see a 100 second delayed turn ON relay RL1 switch, if plug power +12V
in circuit. In Fig.2 see a two range 6-60 second and 1-10 ...


Basic 555 Timer Oscillator
26 Apr 2008 ... The circuit on the left shows the standard astable oscillator circuit for
the NE555N IC. This si the basic circuit that is shown in most ...

555 timer as a switch-mode power supply
27 Dec 2007 ... Most switch-mode power supplies rely on a PWM (pulse-width-modulated)
output that is controlled via voltage feedback. A 555-timer IC can ...

Basic Timer Control with NE555
13 Aug 2008 ... As friends many take an interest the circuit about IC 555 which
be integrated highly popular that circuit. I then lead the circuit sets the ...

Circuit Egg Timer By LM555
22 May 2007 ... Click to View Circuit Egg Timer By 555 This is Easy and Mini Timer Circuit
( Egg Timer) by IC 555. Alarm by Buzzer. This be mini timer ...

simple timer with IC 4093 + 7808
31 Aug 2007 ... The on time of the timer is set by the one shot built with R2/R3 C3 and IC2A:
after pressing pushbutton S1 C3 will be charged slowly through ...

Circuit Egg Timer By 555
IC 555 Circuit, Circuit Egg Timer By 555. ... This is Easy and Mini Timer Circuit
( Egg Timer) by IC 555. Alarm by Buzzer. Circuit Egg Timer by LM555 ...

LM555 Timer Used As A Voltage Comparator Or Schmitt Trigger
22 Oct 2009 ... The next section shows how the LM555 timer could be used as
a voltage comparator or a wide offset Scmitt Trigger. Applications for which it ...

555 timer pulse generator
31 Jan 2008 ... To drive ignition coils is to use a 555 timer pulse generator.
A 555 generates a square wave output that triggers the 2N3055.

Basic Timer using FET 2N3819
8 Sep 2008 ... This circuit be Basic Timer Circuit by use important equipment is FET 2N3819.
By this circuit can can delay long ago arrive at 1.5 minute.

Timer Circuit by FET + Transister
20 May 2007 ... Circuit Timer Circuit by FET + Transister. ... ZN1034E Timer
LED Chaser by IC 4017 + IC 555 ». Timer Circuit by FET + Transister ...

Tan Timer by IC 4060 and IC 4017
26 Oct 2008 ... Six timing positions suited to different skin types Timing affected
by sunlight intensity Six timing positions suited to different skin ...

Touch Switch low cost by Timer IC 555
15 Oct 2008 ... This Touch Switch circuit use a part compares with voltage 2 group,
within the integrated circuit timer LM555 or NE555.

Timer Plus Relay by IC 555
29 Jun 2007 ... This be Timer Plus Relay Circuit by IC 555. When see the circuit also
a little equipment. By the value R1 and C1 perform set the time give ...

Fully Adjustable Pulse Generator By IC Quad Timer 558
29 Jul 2007 ... Fully Adjustable Pulse Generator By IC Quad Timer LM558 Be the circuit
that is valuable very , because frequency pulse fine get freely do ...

stepper motor circuit

Stepper Motor controller by PIC16F84
9 Jan 2008 ... On these pages, I will introduce a control circuit for stepper motor.
The software of this project is adapted to Embedded Systems(Lab13) for ...

Stepper Motor Driver using L298 and L297
This Step motor controller uses the L297 and L298N driver combination;
it can be used as stand alone or controlled by microcontroller.

Basic Stepper Motor Driver by 74194
19 Mar 2008 ... The following diagram is for the main circuit of the motor driver.
A testing version is shown later on this page.

Stepper Motor Driver by 74194
2 Feb 2008 ... Probably the simplest, reversible drive circuit is the H-Bridge.
Some BEAMbots use H-bridge motor drivers; many more use an H-bridge variant ...

74LS194, 74LS04 drive a stepper motor
19 Sep 2007 ... There are so many ways to drive a stepper motor, Here is another circuit that use
74LS194 4 bit bi-directional universal shift register as a ...

4013 and IRF510 Easy drive a stepper motor
19 Sep 2007 ... Here is easy circuit drive a stepper motor with pulse input.
Use IC 4013 (IC Cmos) and Mosfet IRF510 drive Motor Stepper.

Driving Bipolar Stepper Motors by PIC16F84
4 Feb 2008 ... Stepper motors are devices, which convert electrical impulses into discrete
mechanical rotational movements. In a typical stepper motor, ...

Stepper Motor Driver by SN74194
9 Nov 2007 ... This page features an inexpensive stepper motor driver that could be used
to power slow speed projects on the layout or other hobby ...

Simple Stepper Motor Controller by 4027 , 4070
5 Oct 2007 ... Click to View Circuit and Read More I found this circuit in my files.
I don't know where it came from, but it looks like I photocopied it ...

ULN2003 Control Stepper Motor by Parallel Port
15 May 2008 ... This is an easy to build stepper motor driver that will allow you to precisely
control a unipolar stepper motor through your computer's ...

Stepper Motor Driver Kit
28 Jul 2009 ... The motors are top quality, but how the heck do you drive them without
shelling out a fortune? Lightweight, with Ramsey Super Stepper!