LM317T Voltage Regulator with Pass Transistor

V-Guard became the synonym for voltage stabilizers across South India. The company soon extended their range of products to include Voltage Stabilizers, Water Heaters, Solar Water Heaters, Electrical Wires, Cables, UPS's, and Ceiling Fans. www.vguard.in



http://www.youtube.com/watch?v=H061miksIPI&hl=en

Parallel Connection of Voltage Stabilizers. Circuit Engineering. A voltage stabilizer is the primary basis of today's power supply sources. Its technical characteristics determine the functionality of radio electronics. The circuits of different stabilizers are engineered in a variety of different ways with each option having its own peculiarities and parameters. Integrated voltage stabilizers have gained the widest popularity. Power supply units based on these devices are described by the low number of additional electronic components, relatively low cost and efficient characteristics. The majority of radio electronics operate off of power supply units with an increased sourcing current. One of the options for using integrated stabilizers in power supply units is a voltage stabilizer with microchips connected in parallel. Let's look at how such stabilizers work using different examples and considering individual basic circuits. This circuit uses two microchips KPEH5. The operational amplifier DA1 rectifies the drop in voltage at R1 and R2 resistors. The output voltage of the amplifier that is supplied to output 2 of DA2 microchip affects the latter's operation in such a way that the current flowing through it becomes equal to the current flowing through DA3. That's why the overall peak current is added. To avoid the increase in output voltage of the stabilizer without a load we use a ballast - R6. This stabilizer is used with a load that consumes up to 6A. And this is ...



http://www.youtube.com/watch?v=94N4AjH6WHs&hl=en

V-Guard became the synonym for voltage stabilizers across South India. The company soon extended their range of products to include Voltage Stabilizers, Water Heaters, Solar Water Heaters, Electrical Wires, Cables, UPS's, and Ceiling Fans. www.vguard.in



http://www.youtube.com/watch?v=a_4feyjh9LA&hl=en

Krauler Voltage Stabilizers of VR-SD SeriesDo you remember those olden days when TV sets were large and black-and-white? At that time many homes had small black boxes next to their TV sets. TV sets were connected to them, and they, in turn, were connected to the mains. These boxes were called voltage stabilizers, and they served to protect TV sets and other electronic appliances from power surges in the network. Since then much time has passed, technologies have made a big step forward, and the quality of power supply has improved. Nevertheless, power surges that can damage electronics, even though they are quite rare, still may occur even in modern power supply networks. Besides, anyone may face the problem of a storm or a short-circuit.The device we're going to consider (Krauler's VR-SD) is an automatic voltage stabilizer and it is basically a descendent of those black boxes which once protected TV sets of our grandmothers and grandfathers against power supply instability. Being designed using modern technologies, Krauler VR-SD is able not only to level off power drops, but can also perform other functions to ensure quality power supply for the devices connected to it. This became possible due to the most reliable stabilization circuit - a circuit that uses a servomotor, which provides an ideally smooth voltage regulation, and supports devices with high starting currents, such as refrigerators, washing machines or electric drills.The stabilizer connects the load to the ...



http://www.youtube.com/watch?v=WmgDO4-j6jo&hl=en

VR-N series Voltage Stabilizers by Krauler The main reason that causes the laptops, computers, TV sets and other expensive equipment to break down is a voltage drop. It is well known that consumer devices are designed to be used at 220-230V. But the real voltage in the mains often varies from 150 to 280V. Voltage stabilizer is a device that automatically converts high/low voltage in stable 220V.There are three different power options for KRAULER stabilizers of the N series: 1000, 2000 and 3000 volt-amperes (VA). The higher the power value is, the higher are the total power and the number of various devices which may be connected to the stabilizer. The work of stabilizers of this series is based on a simple, but very effective relay circuit. On the left side of the device there is a LED display, showing the current value of voltage. The digital display is very convenient to control the input and output voltages, its indications are well read, even under fairly bright illumination. The display shows the input voltage. At voltages beyond the permissible values, the protection system activates. If the voltage drops below 140V, the LED indicator lights up the letter L, signaling of a low level of voltage. If the voltage exceeds the maximum permissible value, the letter H is displayed. In the case the voltage continues to increase, all the connected devices will be disconnected from the power supply to avoid faults and damages.There are five sockets on the reverse side, which ...



http://www.youtube.com/watch?v=YLZ5u2UaQpk&hl=en

LiteFuze Releases its new LR Series with built in Voltage Stabilizers/Regulators. Heavy Duty Step Up/Down Voltage Converters/Stabilizers for Use all around the World.



http://www.youtube.com/watch?v=fLvVRX6HOrw&hl=en