LM317T Voltage Regulator with Pass Transistor

Using an audio transformer to boost up the audio signal and using a laser diode to transmit audio signal to a solar cell. The laser diode has it's own voltage regulator built from LM317. Audio signal originally change in term of voltage( and frequency) becomes changing in term of current( and frequency) before entering the laser diode. Current is propotional to the laser beam intensity. Subsequently, the solar cell reveicer the laser beam with a varying intensity( and frequency) and produce a audio signal change in term of voltage( and frequency). This improved version has a adjustable pre-amp which amplifier the audio signal before it reach the speaker. Using a low power Op amp LM324 instead of LM741 which only need a power supply of minimum 4VDC only. The improved version has enough power to drive a large variety of headphones and speakers wihout addition power needed. Pre-amp: Ultilizing a non-inverting amplifier configuration to prevent loading effect.



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

Hyperion Yak 54 120e from horushobby.com Setup Scorpion 4035 250 with 20x10e JXF wood prop (9s 5000mah) Kontronik Jive 80HV Hitec 7985MG elyq voltage regulator



http://www.youtube.com/watch?v=PnhBBtyOot8&hl=en

The P-3600 JR G delivers a stable 120 volts of AC power (from any voltage source between 88V-134V and 170V-265V) to protect equipment from problems. It also includes surge protection and diagnostic readouts.



http://www.youtube.com/watch?v=C6kg8WePjjk&hl=en

The Moss Motors Tech team break down the mystery behind the voltage regulator. This is video one of two.



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

Information On Building This at www.h2o2fromh2o.oregonsouth.com Update 1/212/2009: The Plans are ready come and check them out. This is the first DIY project to the h2o2fromh2o website. A Simple Voltage regulator. Based on the LM317. Great for the bench to power projects while still on a bread board. Use as a bench Variable power supply. Have more then one to power your voltage hungry prototype 5V, 3.3V, 2.5V and so on. Use it on the production line to power your device under test, That's what I made the powerstick for. Vary cost efective when you need 10 power supplies and many diferent voltages. Photos avalible for V1.1.1 www.h2o2fromh2o.oregonsouth.com



http://www.youtube.com/watch?v=U4wBXRbIa2U&hl=en

Here is video of Adjustable Regulator using LM317(3-Terminal Adjustable Regulator).The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range.Here is very simple circuit having Two Capacitors , One Register Pot and LM317.The value of Pot is chosen so that my output voltage vary between 0V to 0.55V (DC).



http://www.youtube.com/watch?v=G2bFcHsBuKQ&hl=en

High copper prices have a great impact on power cable prices, especially for larger sized cables having long runs. Prices have sky-rocketed over the last few years and it is with this in mind that Ashley-Edison developed a product to "compensate" for the problem.

Many owners, developers and contractors have to suffer this expensive problem, but by incorporating a "Constant Voltage Compensator" an installation cost may be drastically reduced.

When the voltage across a cable drops to a low value, the "Compensator" is able to detect this and compensate by boosting the voltage to a preset value - of say 400V. Using an "output sensor" it will continuously monitor the output voltage, which is checked against a "comparator", and if there is any shortfall it will instruct the transformer to add (+) or "boost" the voltage to its required value by means of a servo motor. In this way, the output voltage is continuously monitored and maintained.

This system does not emit any harmonics and has been a well proven voltage stabiliser design, in use for many years.

The "Compensator" is very suitable for use on Golf Course Lighting/Equipment, Perimeter Lighting applications and Farm/Estate Buildings etc. where long cable runs are an issue.

Both Indoor and Outdoor enclosure types are available to suit a variety of needs.

Alternative "Booster Transformers" have a main disadvantage as their output voltage is "following". This means that whatever the input voltage, the "transformed step-up" output voltage will not remain constant - fluctuating according to any load changes which will transmit to the load where it may be too high or too low. The voltage from no-load to full-load will cause the voltage drop to change drastically, which will not help improve the voltage drop. The "less than 4% volt drop window" is still not fulfilled and it is required to use a larger than necessary cable size. In fact, this does not help resolve the problem of expensive cables!