LM317T Voltage Regulator with Pass Transistor

http://www.unkups.com/]Welcome to U & Kay Power System Private LimitedManufacturer & Exporter of High Quality Electronic EquipmentsWe are an ISO 9001:2008 c...



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Joaquim Pedro Ribeiro (ALSTOM)



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For more information or a written out step by step you can stop by http://www.thediyguy.net/2012/11/replacing-the-automatic-voltage-regulator-on-your-generat...



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The project is designed to provide low voltage start to induction motors. This is achieved by using star to delta conversion. Star/Delta starters are probably the most common reduced voltage starters in the 50Hz industrial motor world. Star delta is used in an attempt to reduce the start current applied to the motor. Thereafter, full load current is applied to the motor. For more information about this project, visit www.edgefxkits.in Edgefx Technologies provides 100% output guaranteed electrical and electronics live project kits for 3rd & final year engineering students. We provide various types of projects like embedded projects, robotics projects, electrical projects and communication based projects and help to thousands of ECE and EEE students in improving their practical knowledge in electronics. For more details, visit www.edgefxkits.in



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It is a microcontroller-based project that uses PIC16F690 which is a 20-pin flash-based and an 8-bit CMOS microcontroller with nano-watt technology. The project prototype has analog inputs namely rain sensor and light sensor that are both activated during automatic mode. Push button switches for retrieval and exposure are activated during manual mode. It has also limit switches with shared input to cause the motor to stop after retrieving or exposing hanged clothes and toggle switch input that serves as a selector for manual or automatic mode. Analog signals are receive by the rain and light sensor and are converted to digital signals by the microcontroller during automatic mode while digital signals are receive by the microcontroller during manual mode. The rain sensor will detect rain droplets that will give signal to the microcontroller to retrieve the laundry and expose the laundry back as the rain stops while the light detector will also give the signal to the microcontroller to retrieve the laundry at night and expose the laundry at day. The manual mode will give the option to expose or retrieve the laundry manually. The output comprises with a low power-high torque dc motor which is driven by a motor driver. The motor driver is responsible for the forward and reverse rotation of the motor. The motor needs to be supplied with 12-volts direct current while the microcontroller, the rain sensor, light sensor, limit switches and selector require 5-volts direct current ...



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The AVR produced is for the purpose of my FY project. The AVR effectively controls the AC output of a revolving field generator by regulating the exciter current. Incorpated is a pic microcontroller sepic SMPS circuit and optoisolator for feedback purposes. An LCD was also integrated.



http://www.youtube.com/watch?v=YQl2W3XeJl4&hl=en

bit.ly - A Honda vehical may come into your shop with multiple solenoid codes stored as well as a P12-98 indicating the electronic load detector or ELD circuit voltage is high. The ELD is an electronic voltage regulator which will only allow the alternator to charge when air is demand. This is done to improve fuel economy and emissions. Described and explained by Pete Luban, Technician Supervisor at Automatic Transmission Service Group ATSG For more information, visit us at www.atsg.com and join today! http Automatic Transmission Auto Repair Automatic Honda CRV Transmission problem



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Model No. 15A:- The main objective of the project is designing an automatic washing machine for programmable sequential switching of motors using embedded system based micro controller concept. The development of this application requires the configuration of microcontroller architecture that is the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, where it is used in the following mode ie, the set mode, auto mode and manual mode for controlling different machines. In set mode, through the digital clock the machinery will run based on/off and on time where as in auto mode they will run by default settings and finally in the manual mode the real-time systems. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit efxkits.com



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Model No. 145:- The main motto of the project is to utilization of sensor with combination of embedded equipment for the door opening systems. This project describes the design and implementations of automatic controller for the door. The door opens when any human movement is detected near the door it detects with help of a PIR (Passive infrared) sensor detects the movement and sends a signal to the transistor, in turn gives interrupt signal to a programmable microcontroller of 8051 family, the output signal form the microcontroller is fed to the DC motor which is used to open the door and close the door which is driven by a motor driver IC. Interrupt signals can be used to stop power to the motor in the event of locked rotor condition. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit efxkits.com



http://www.youtube.com/watch?v=-XYnCV-t1wE&hl=en

Joaquim Pedro Ribeiro (ALSTOM)



http://www.youtube.com/watch?v=6Yg-psKau0o&hl=en

DIY automatic light regulatorTwilight switches turn on the lights depending on the intensity of ambient light. A twilight switch can regulate illumination depending on the brightness of external light.Automatic built-in regulators maintain a specified illumination level depending on the changes in external lighting. Thus they smoothly adjust specified illumination. In this way lighting can be controlled in the streets, houses, staircases, land estates, shop windows, advertisement signs, and duty rooms of industrial facilities.Automatic light regulators save a lot of electric power. The main category of twilight switches has a photocell in its design.A photocell measures illumination. So depending on the determined value the device turns electric circuit on or off. The popular summer house sensors on solar batteries also have photocells in their designs. To be more specific, they use sensitive phototransistors or photodiodes which turn on the charging mode during the day and switch on LEDs in the nighttime.The operating principle of such device can be shown through the example of two simple assemblies which use a phototransistor and a key element on the basis of bipolar transistors. The devices come without additional up-invertors. They are powered from galvanic cells and are mounted onto small sections of the printed circuit board which facilitates assembly.The number of power elements depends exclusively on the load, ie on the number and capacity of LEDs. One of the ...



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EA230 self excited brushless type genset voltage regulator is an universal AVR and compatible replacement for Leroy Somer R230 regulator. *Use for reference purpose only and not a genuine Leroy Somer product.



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