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The choice of the right AC motor drive (VFD) for the application is very important and has great influence on its lifetime. If the capacity of AC motor drive is too large, it cannot offer complete protection to the motor and motor maybe damaged. If the capacity of AC motor drive is too small, it cannot offer the required performance and the AC motor drive maybe damaged due to overloading. But by simply selecting the AC motor drive of the same capacity as the motor, user application requirements cannot be met completely. Therefore, a designer should consider all the conditions, including load type, load speed, load characteristic, operation method, rated output, rated speed, power and the change of load capacity . The following table lists the factors you need to consider, depending on your requirements. Selection Note for VFD Why to use Choke for VFD? When the AC Motor Drive (VFD) is connected directly to a large-capacity power transformer (600kVA or above) or when a phase lead cap...

This is a Simple Analog-to-Digital Converter with LT1018. An analog-to-digital converter (abbreviated ADC, A/D or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.The converter has a 60-ms conversion consumes 460 pA of 1's. 5 V power supply and maintains an accuracy of 10 bits on a 15 ° C in the temperature range of 35 ° C.   Simple Analog-to-Digital Converter with LT1018 Circuit Diagram A pulse applied to convert the command line causes Q3, operating in reverse mode, the discharge path through the diode 10 kO, forcing its collector low. Q3 results of reverse mode switching in a capacitor discharge to 1 mV of ground. During the time of the ramp value is less than the input voltage, output of the CIA is low.  This allows pulses ClB stabilized quartz oscillator, modulating Q4. The output data appears at the collector of Q4. When the ramp crosses the starting value of the output ...

his is the Simple 12V To 24V DC-DC Converter Circuit Diagram. This simple DC-DC converter can provide up to 24V from a 12V source. It can be used to run radios, small lights, relays, horns and other 24V accessories from a 12V vehicle with a maximum draw of about 800mA.   Simple 12V To 24V DC-DC Converter Circuit Diagram It can be used to charge one 12V battery from another, or step up the voltage just enough to provide necessary overhead for a 12V linear regulator. Using one op-amp as a squarewave oscillator to ring an inductor and another op-amp in a feedback loop, it won't drift around under varying loads, providing a stable 24V source for many applications. With a wide adjustment in output this circuit has many uses. 

Plastic, a new card that allows you to store credit cards, debit cards, gift cards and frequent shopper in one. It has an e-ink screen and has security chip. Your wallet will be made once you know Plastic diet, a device that would replace most secured credit cards, debit cards, gift cards and frequent customer. The device is a card that is linked to an application on your phone (via Bluetooth). Plastic has the ability to store up to 20 cards and the application keeps a history of transactions. Does this sound familiar? This is because you probably remember the product called Coin which was introduced in 2013 or 2010 presented in 2.0 Card Like Plastc, these products attempt to store the information of different cards to choose which you want to use each time you want to use. The difference between Plastic and other cards is that Plastic can display bar-codes, frequent shopper cards or gift cards and all information can be erased remotely if it has been lost or stolen. Plastic has a scre...

Power supply circuit to generate output below were variations between 1.3V DC to 12.2V DC with 1A current. In addition, the power supply circuit is also equipped with over-current protection or shield against belebih flow. Power supply circuit is very simple, but the quality is quite good, made her basiskan regulator IC LM723 is a pretty legendary. Description: R2 to set the output voltage. The maximum current is determined by R3, over-current protection circuit inside the LM723 to detect the voltage on R3, if it reaches 0.65 V, the voltage output will be off her. So the current through R3 can not exceed 0.65 / R3 although output short-circuit in his. C3 and C4 are ceramic capacitors, as much as possible directly soldered to the PCB, this is because the LM723 is prone to oscillation that is not cool. LM723 works with 9.5V input voltage to 40 V DC and the LM723 can generate its own current of 150mA when the output voltage is not more than 6-7V under input voltage. Specifications: Output...

The objective of the circuit is to create a power supply that would produce an output of 0 V to 15 V at 1 A current. Terminology 2N3055 – a complementary Silicon Epitaxial-Base planar NPN transistor mounted in Jedec TO-3 metal case for use as power transistor Bridge Diode – also known as bridge rectifier which has four diodes arranged in a bridge configuration where the output voltage has the same polarity with either polarity of the input voltage Circuit Explanation The construction of this power supply circuit is very simple in such a way that the components used are easy to be located while the cost is very cheap. With the biggest provided current at 1 A, the output voltage is adjusted for minimal ripple effect and stabilized in the range of 0 V to 15 V DC. This is made possible by the standard transformer output of 1.5 A with a primary winding voltage of 220 V and secondary voltage of 18 V. The current is being limited by the Zener diode D1 with a rating of 18 V and 1.5 W. The li...

Watching movies is a neat escape from the stressful lifestyle we live in. Watching movies in a wide screen and surround sound take you far away and into the movie scene you are watching. You watch it as if you were there in the movie scene. Of late, we can only experience this escape in a cinema. However, modern technology may be able to provide this same sight and sound experience right in your own living room. We will discuss the basic components of a home theater system in this article. Read on to understand how these basic components can deliver the best cinematic experience to a home theater system. Home theater experts state that the most important consideration in setting up a home theater system is the size of the room where you will set up the home theater system. The most important component of the home theater system, which is the television, is dependent on the size of the room. Although, the recommendation is 27 inches television set at a minimum is necessary for your home...

How to build a automatic lighting controller circuit. The governor following is intended to regulate the light intensity incandescent 220 V. The components in a relatively few, which means it can easily be mounted onto a small plate. After the build, we recommend you place it inside the box which is flush mounted switch ON / OFF the lamp. Setting the switch to ON, the lamp will light after about 400 msec, a delay is probably negligible. Automatic Lighting Controller Circuit Diagram: But when the state enters the ON OFF, then mesolathei a period of 20 sec, the brightness of the lamp remains unchanged to start falling out soon after.  The last feature is particularly useful when we want to have a little time from the moment you 'close' switch. Once the switch S1 set to ON, the capacitor C2 begins to charge through R1, C1 and bridge D1-D4. The Zener diode D5 limits the voltage across the capacitor to about 15 n. After awhile, the diode D6 LED illuminates, causing the appearance of...

Overview: The AN7510/7520 series is a 0.5W to 3W BTL audio power amplifier IC. Equipped with a standby function and mute or DC  volume circuit, the series includes a lineup of single and dual output models. With simplified set design due to minimum  external components, this IC has a wide variety of applications. Features: Operating power sourcs voltage: 3.0V to 13.5V. Built-in standby function. Built-in mute or DC volume circuit. Circuit Diagram:  0.5W to 3W BTL audio power amplifier IC

Build a 3 volt to 9 volt with LMC555 Circuit Diagram. This is a Build a 3 volt to 9 volt with LMC555 Circuit Diagram. This dc converter is built with the CMOS version of 555 timer. You can get 12V too if you change the zener diode to a 12V version. 3 volt to 9 volt with LMC555 Circuit Diagram

If you want to save energy, you have to be committed enough in doing the necessary things for it. Without your commitment, you may not become mindful of you actions, which can directly or indirectly affect your overall energy consumption. Thus, you have to be committed, so that you can see results on it.  It begins with your commitment - Tips To Save Energy ‪#‎ ParkerOil‬   ‪#‎ HeatingOil‬   ‪#‎ Diesel‬   ‪#‎ DieselDelivery‬   ‪#‎ Stroudsburg‬ ‪#‎ Pennsylvania‬   ‪#‎ HVACServiceStroudsburg‬   ‪#‎ HVACSystemInstallation‬ ‪#‎ BulkFuelStorage‬   ‪#‎ StroudsburgHeatingOil‬ ‪#‎ sycamorecompanies‬ ‪#‎ StroudsburgDiesel‬ ‪#‎ StroudsburgHVAC‬ ‪#‎ bettertogether‬   ‪#‎ wedeservethis‬

The post explains a novel way of using an ordinary SMPS unit for charging a battery via a solar panel. The method will result in an extremely efficient and fast solar charging of the connected battery. SMPSs have become very common nowadays and we find them being used in the form of of low voltage DC units wherever needed. The best example is our cell phone chargers which are actually compact SMPS 5V chargers. Solar charger devices are also becoming popular nowadays and folks are constantly in look out for options in the form of solar chargers having the most efficient charging response. Solar panels or PV devices are normally utilized for charging lead acid batteries which tends to take relatively long hour for getting fully charged, and especially when the sunlight conditions are bad things start getting even more sluggish. For tackling the above condition or rather for enabling quicker charging from solar panels, special MPPT based soar chargers have been developed which effecti...

Simple animation to explain complex principles - Electronics 1, aircraft radial engine 2, oval Regulation 3, sewing machines 4, Malta Cross movement - second hand movement used to control the clock 5, auto change file mechanism 6, auto constant velocity universal joint 6.gif 7, gun ammunition loading system 8 rotary engine - an internal combustion engine, the heat rather than the piston movement into rotary movement # Via World Of Technology. HowStuffWorks see from the attached three car engine diagram: 1, inline engine - it's cylinders lined up side by side 2, V-type engine - cylinder arranged at an angle of two plane 3, boxer engine - cylinder engine arranged in two planes relative By Geethalakshmi,

Hi friends... I hope u all will be gud.Today i am here again with another article.This article is basically for those peoples who just start electronics practically.In this article i will discuss about Breadboard uses.Because it is very necessary if you are going to make your electronic project.Then you must have knowledge about Breadboard .Generally most of the electronic projects starts their life on a breadboard and then on PCBs and all. Go through the article and learn how to use a bread board.   INTRODUCTION   A breadboard also is known as protoboard . It is a type of solderless electronic circuit building .You can build a electronic circuit on a breadboard without any soldering ! Best of all it is reusable. It was designed by Ronald J Portugal of EI Instruments Inc. in 1971.    HOW IT WORKS   There are a lot of holes in the board to place components and power supply. Actually these holes are arranged in a particular fashion and these are shorted with meta...