A popular modification for early Sprites and Midgets is to replace the single speed wiper motor with a dual speed motor from a later model car. While it's relatively easy to wire up a switch for the two speeds, getting the wiper motor to auto park when the switch is turned off can be a little more tricky.
HOW DOES IT WORK
Flicking the toggle switch to the first position (slow operation), power is applied to the relay, closing the contact and supplying power to pin 5 on the wiper motor (via pin 87 and 30 on the relay). The Auto Park connection on the Wiper Motor (pin 2) is not connected to anything while the relay is energized.
Flicking the toggle switch to the second position (fast operation), power is supplied directly to pin 3 on the Wiper Motor. At this point you might expect the relay to turn off, but in fact the relay remains turned on by current leaking back out of pin 5 (slow) of the wiper motor (via pin 30 and 87 of the relay). The Auto Park connection on the Wiper Motor (pin 2) is not connected to anything while the relay remains energized.
Flicking the switch to off, causes the relay to turn off, this connects pin 2 of the Wiper Motor to pin 5 of the Wiper Motor (via pin 87a and 30 of the relay). What I think happens here is that power is connected to pin 4 of the Wiper Motor, this must be internally connected to pin 2 via a switch, which allows us to continue to supply power to the slow pin 5 of the motor until it reaches the park position when pin 2 turns itself off.
TO READ MORE DOWNLOAD IT
Saturday, March 28, 2009
Wiper Circuits for Transports
Friday, March 27, 2009
VLSI Design: Basics of VHDL
We have attached VLSI basic Study materials for starter of VLSI and we were given some basic programs for exercise. To test your programs you can download the free trial version of Xilinx latest version. TO DOWNLOAD the Materials for free
How to Construct a Line Follower Robot
What is line follower robot?
Find out more inside....
For my mini project, I decided to make a line-follower robot. This simple robot is designed to be able to follow a black line or white line on the ground without getting off the line too much. The robot has two sensors installed underneath the front part of the body, and two DC motors drive wheels moving forward. A circuit inside takes an input signal from two sensors and controls the speed of wheels’ rotation. The control is done in such a way that when a sensor senses a black line, the motor slows down or even stops. Then the difference of rotation speed makes it possible to make turns. For instance, in the figure on the right, if the sensor somehow senses a black line, the wheel on that side slows down and the robot will make a right turn.
Download for the design is given below
Line follower robot : circuits for black line
Line follower robot : circuits for white line
Thursday, March 26, 2009
Projects List
These are the list of the projects we are handling right now. This list will be updated frequently as we post new projects. You can use this single post to access all the projects under Education On-Line.
1.Temperature Controller
2. Remote Control for Home Appliances
3.USB Power Booster
4.Test for Remote Controller
5.Traffic Light Controller Controller
6.Wireless Switch
7.How to construct line follower robot
Wednesday, March 25, 2009
Temperature controller
Here is a simple Temperature controller that turns your personnel computer (PC) off. when the temperature of the PC increases beyond the optimal temperature.
TO READ MORE DOWNLOAD IT
DOWNLOAD
Remote control for home appliances
Connect the circuit to any of your home appliances (lamp,fan, radio, etc) to make the appliance turn on/off from a TV, VCD or DVD remote control. The circuit can be Activated from up to 10 metres. The 38kHz infrared (IR) rays generated by the remote control are received by IR receiver module TSOP1738 of the circuit.
TO READ MORE DOWNLOAD IT
DOWNLOAD
Tester for remote control
Here is a simple tester for checking the basic operations of an infrared remote control unit.It is low-cost and easy to construct. The tester is built around infrared receiver module TSOP1738. Operation of the remote control is acknowledged by a tone from the buzzer. The circuit is sensitive and has a range of approximately five metres.
TO READ MORE DOWNLOAD IT
DOWNLOAD
Trafficlightcontroller
This simple traffic controller can be used to teach children rudiments of traffic rules.The circuit uses readily available components. It mainly comprises rectifier diodes (1N4001),a 5V regulator 7805, two timers IC 555,two relays (5V,single-changeover),three 15W, 230V bulbs and some discrete components.
TO READ MORE DOWNLOAD IT
DOWNLOAD
USB powerbooster
The USB serial bus can be configured for connecting several peripheral devices to a single PC. It is more complex than RS232, but faster and simpler for PC expansion.
To READ More Download it.
DOWNLOAD
Wireless switch
Normally, home appliances are controlled by means of switches,sensors, etc. However,physical contact with switches may be dangerous if there is any shorting.The circuit described here requires no physical contact for operating the appliance.
To READ MORE DOWNLOAD IT.
DOWNLOAD
Thursday, March 5, 2009
Universities in United Sates of America
Where do you want to study in the USA?
Dream of studying in the US? We can make it happen
Education On-Line helps international students succeed in one of the world’s finest education systems through established partnerships with major universities. We offer expert guidance, support and reduced international student tuition.
For students who do not have the required English proficiency, the on campus ISCs offer university preparation for direct entry to undergraduate and graduate degrees. The program combines academic modules with study skills, cultural integration and English as a Second Language training. Each ISC is run by Study Group, working in partnership with the host university.
Education On-Line has simplified the overwhelming task of choosing a university or college in the US by selecting partner universities that have excellent academic programs and provide supportive environments.
Fast application process
Benefit from a simplified application process which focuses on helping you achieve your goals quickly and easily.
Click Download to get the file.
DOWNLOAD
Universities in SINGAPORE
Here is the link for the Universities in SINGAPORE.
Click Download to get the file.
DOWNLOAD HERE
Universities in INDIA
Here is the link for the Universities in INDIA According to sate wise.
Click Download to get the file.
DOWNLOAD HERE
Tuesday, March 3, 2009
Electronic system design MANUAL
Here is the link for the Electronic system design MANUAL with circuit and working procedure
Click Download to get the file.
DOWNLOAD
Electronic circuit-I lab
Here is the link for the Electronic circuit-I lab with circuit and working procedure
Click Download to get the file.
DOWNLOAD
TELECOMMUNICATION ENGG.LAB
Here is the link for the TELE COMMUNICATION ENGG.LAB with circuit and working procedure
Click Download to get the file.
DOWNLOAD
NETWORKS LAB
Here is the link for the NETWORKS LAB with circuit and working procedure
Click Download to get the file.
DOWNLOAD
Digital Electronics LAB Manual
Here is the link for the Digital Electronics LAB with circuit and working procedure
Click Download to get the file.
DOWNLOAD
microwave manual
Here is the link for the microwave manual with circuit and working procedure
Click Download to get the file.
DOWNLOAD
Linear integrated circuit MANUAL
Here is the link for the Linear integrated circuit MANUAL with circuit and working procedure
Click Download to get the file.
DOWNLOAD
VLSI VerilogHDL programs
Here is the link for the VLSI VerilogHDL programs with circuit and working procedure
Click Download to get the file.
DOWNLOAD
Electronic Circuit-II LAB
Here is the link for the Electronic Circuit-II LAB with circuit and working procedure
Click Download to get the file.
DOWNLOAD
Electronic device and circuit LABMANUAL
Here is the link for the Electronic device and circuit LABMANUAL with circuit and working procedure
Click Download to get the file.
DOWNLOAD