LM317T Voltage Regulator with Pass Transistor

Simulated run of the Small Engine Controller with integrated Alternator regulation. To be used for a 'Smart' DC generator optimizing power output as well as ...



http://www.youtube.com/watch?v=4zDpfDg4biY&hl=en

This video from pedalpowergenerator.com shows one way how to install a charge controller for your battery powerpack. This video is a great intro to people who have never cut a wire, and used crimp on terminals before. The charge controller makes sure that you don't over charge a lead acid battery. It can handle up to 25 Amps of current and can withstand up to 120 Volts input voltage.



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

Schematic: i654.photobucket.com Testing a setup where a single 555 timer is used to create the signal for a modified servo motor. Two LDR-resistors work as a voltage divider/adjuster that controls the servo rotation. Control voltage is fed to pin 5. Pin 3 is the output for servo. Decoupling operating voltage with capacitor is recommended.



http://www.youtube.com/watch?v=5Ke8gwnYDng&hl=en

Explanation of how to wire a 12V solar panel to a battery via a charge controller for charging a battery to use in any off-grid situation eg in a caravan, motorhome, canal boat, shed, house or anywhere



http://www.youtube.com/watch?v=6pA4mYQxb54&hl=en

Sine Wave Inverter (SMPS) Voltage PID Controller using PIC



http://www.youtube.com/watch?v=493WxmETyLk&hl=en

Experiments Design of single phase AC voltage controller with R Load Design of single phase AC voltage controller with RL Load Technical Specification Input Voltage 110 V AC Output Current 2A Input Frequency 50Hz Firing Angle Variation 0-180 degree Features One potentiometer is provided to vary the firing angle Inbuilt Power supply for Converter and triggering pulse Inbuilt Lamp Load. Power ON indication Switch for separate input to power circuit and triggering module All the important points are terminated with banana connector for monitor/ measure/ study the signals using anyone of measuring equipments



http://www.youtube.com/watch?v=tAFJnY_Wx-4&hl=en

Motorcontroller_10-26-2011.mp4 I had designed a very high power motor controller that originally ran using a 555 timer that was setup for pulse width modulation. However; Problems where found with 0% and 100% duty cycles, and issues with reliability of the 555 under this kind of use. A pic18F26J11 8 bit microprocessor was used for the PWM drive and would also be leveraged for the additional features required for protection circuits and some miscellaneous other tasks. The ten Mostfets are 61-65 amps at 200V rating providing a 600-650 amp motorcontoller with a surge capability of 2500 amps for 10ms. Two high power fast diodes are incorporated on the ends of the mosfet strings to handle back EMF from a motor. I think these are 200 or 250 amp rated (will have to look later) so I am hoping this is enough to protect the mosfets. A single NPN transistor is used to setup up the 3.3v logic output of the microprocessor to 10-12 volts required to drive a 15 amp gate driver chip which does the fast switching to keep the mosfets cool. This gate driver needs only 5.5 volts minimum to switch the mosfets high. However this driver needs 10-12 volts in order to supply that voltage to the mosfets for a good strong switching affect with 10v being optimal to the gates. I burnt up a LM317 adjustable voltage regulator with some of the mosfet power oscillations which was used to drive the logic circuitry so in this video a 12v zener diode with voltage drop resistors was used to power the pic18 ...



http://www.youtube.com/watch?v=9THN3YrfckU&hl=en

Ajay from National demonstrates LM5088 high-voltage, wide input range, non-synchronous buck voltage controller featuring frequency dithering capability for low EMI.



http://www.youtube.com/watch?v=GqdGHe97tM8&hl=en

The controller is regulating battery voltage now. Target voltage has been set at 14.2 volts. The display LED shows a PWM simulation when target battery voltage is reached (this doesn't show up too well on the video), and a series of flashes when it's below target voltage. 1 flash for 11 volts, 2 for 12 volts, 3 for 13 volts etc. It also shows a series of rapid flashes if voltage drops below 10.5 volts. The LED can be turned off altogether if desired to save power. With the LED turned off, the controller takes very little current - about 0.5 milliamps, that's just 500 microamps! Future developments will include detection of excessively long cables between the battery and the controller or excessive current flow. Also voltage measurements will be more discriminating to get a more precise, more stable feedback control. Part of 'designing a solar charge controller' at www.256.co.uk



http://www.youtube.com/watch?v=UPVzB2HY-Dg&hl=en

the v.2 controller will do 60v with a resister in line with the voltage regulator.



http://www.youtube.com/watch?v=DH1c6hwlo68&hl=en

The RGi-AWC-1 (Advanced Wireless Controller) is a 6.2in x 5in (15.75cm x 12.75cm) dual CPU board that embodies a complete robotics control system and development platform. It communicates via wireless 802.11b/g WiFi or 802.15.4 ZigBee communications standards. The internal resources include the following: ------------------------------------------------------------ • A 10-channel R/C servo controller with 180-degree range (500µs to 2.5ms pulse) and automatic internal/external power switchover. • A dual high-efficiency motor controller with a capacity of 45A per motor, precision current sensing and limiting, and programmable motor soft start. • 13 analog inputs with input protection, filters and 10-bits of resolution. • A 32 channel Dynamixel AX/DX servo controller with 300-degree range, 1024 steps, and programmable rpm, torque and offsets. • A powerful 15A PWM output with 255 steps, capable of switching internal battery and external battery sources. • A unique power management system with programmable sleep times, inactivity timeout and direct sleep modes, switchable output power for webcam, motor and radio sections. • A high-efficiency, wide-input range, switching, step-down, voltage regulator that provides 6.0V at 3A. • A separate voltage regulator that provides 5.0V at 1A, with a powerful 25A switching FET for output power, used for remote power management of webcams, video cameras, etc. • An additional voltage regulator that provides 3.3V ad 1A, used for the radio ...



http://www.youtube.com/watch?v=2h0p6HYqs14&hl=en

A Solar Charge Regulator aka Controller acts as voltage regulator allowing batteries to charge without overcharging. 7 amp hours at 12 volt = 12 watts of continuous usage for 7 hours OR 7x12 = 84 watts for ONE hour. 7 amps of current at 12 volt is 84 watts. Most regulators figure somewhere between the charging battery voltage and the open voltage or right at the top of a fully charged battery. 7 amps x 14 volts (fully charged battery) = 98 watts rounded to 100 watt MAX! Some older batteries that are in poor condition, like the one I am using in this video, draws current less effectively, this is why it is only receiving 38 watts. Also, the wiring is not proper for a real installation and the panel is not at the optimal angle to the sun, this is just to show you what a "Charge Regulator" does. It is easy to forget!!!!! I had toxic gas smelling up my yard from a smoking battery I hooked direct in the morning and by 12 noon it was destroyed! Dangerous and stupid, BY A CHARGE REGULATOR! A fully charged 12 volt battery is 12.6 - 12.8 volts at rest and 13.6 - 14.0 volts while charging.



http://www.youtube.com/watch?v=yv7P0q8ZJvI&hl=en

Part of 'Building a Solar Charge Controller' at www.256.co.uk. The final packaging phase requires that the controller is weatherproof, in fact waterproof, but still lets light from the LED out. The circuit board has been encapsulated in clear heat shrink sleeving and sealed with hot glue.



http://www.youtube.com/watch?v=lJsW5QFX66U&hl=en

DMX 12-24v Lighting Controller with manual control mounted in a military case with bulkhead or chasy mount style connectors. Manual control circut switch is intigrated into the "pluging it in" so theres no switch to break. You plug it in it powers the voltage regulator on to give proper voltage to go through the pot and then returned for the analogue control. This is just a prototype there will be future revisions such as making it better looking inside mabe even multiple units in a larger housing weel see where it goes. Special thanks to Vance Vegas and ADlight and Special Effects for the work.



http://www.youtube.com/watch?v=uOAm-vG9Rb8&hl=en

This is my homemade miniature elevator controller, using relays! it drives a TEMIC 24VDC motor, and its runs on a HP 18V 1.1A power supply, from an junked inkjet printer. The motor runs on the full 18 volts, and for levelling it runs on 5 volts, using a LM7805 voltage regulator. the levelling switch will be replaced with some more microswitches when i begin building the real elevator shaft. the buttons are : up to floor 2, down to floor 1, emergency stop.



http://www.youtube.com/watch?v=LqhlC9t1xkI&hl=en