Basic block diagram of dc dc converter


















So, this circuit is easy and cheap. I like them. Or you too? How does it work If you are not clear. Related Posts.

Apichet Garaipoom. I love electronic circuits. I will collect a lot of circuit electronics to teach my son and are useful for everyone. Thanks for your support. View All Posts. September 27, , am. October 8, , am. October 9, , pm. August 13, , am. August 15, , am. November 26, , pm. April 6, , pm. November 28, , pm. July 22, , am. With Thanq. October 1, , pm. DC stands for Direct Current, in which the current flow is unidirectional. The charge carriers in DC supply travel in a single direction.

Solar cells, batteries, and thermocouples are the sources of DC supply. A DC voltage can produce a certain amount of constant electricity, which becomes weak when it travels further longer.

An AC voltage from the generator can change their strength when they travel through a transformer. They are used to increase or decrease the voltage level. This is commonly used in automobiles, portable chargers, and portable DVD players. Some devices need a certain amount of voltage to run the device. Too much power can destroy the device or less power may not be able to run the device.

The converter takes the power from the battery and cuts down the voltage level, similarly a converter step-up the voltage level. For example, it might be necessary to step down the power of a large battery of 24V to 12V to run a radio. The discussion we have done so far, it might be clear to you now, that the DC DC converters are used to change the output voltage as per the requirement.

Different types of converts are used to step up or step down the voltage which we will discuss in detail. Consider a desktop PC for an example. Inside the cabinet, you can see several sub-circuits, each with its own voltage level requirement different from that supplied by the battery or an external supply. So you need a variable dc, and obviously it should be small yet efficient. Wind energy like airheads is unreliable and inconsistent…well unreliable is a bit too much…but it certainly is inconsistent!!!

Since winds never flow at the same speed, the turbines also rotate at different speeds at different times. Not only wind, almost all nonconventional energy sources like solar or tidal or hydel, etc.

See, from small scale electronics like computers to large scale power plants, you use DC-DC converters. TTL logics require 5 Volts and CMOS chips can work up to 15 volts, in such an integrated system a voltage converter circuit helps to avoid multiple power supplies.

Similarly, high-end subs need higher volts all together can be managed with one power supply. For example, a TV set, contains all the above situations. DC to DC Converter has infinite uses, but some common uses are given below,. A boost converter step-up converter is a DC-to-DC power converter that steps up voltage while stepping down current from its input supply to its output load. It is a class of switched-mode power supply SMPS containing at least two semiconductors a diode and a transistor and at least one energy storage element: a capacitor, inductor, or the two in combination.

Power for the boost converter can come from any suitable DC source, such as batteries, solar panels, rectifiers, and DC generators. A boost converter is a DC to DC converter with an output voltage greater than the source voltage. Battery power systems often stack cells in series to achieve higher voltage. However, sufficient stacking of cells is not possible in many high voltage applications due to lack of space.

Boost converters can increase the voltage and reduce the number of cells. Two battery-powered applications that use boost converters are used in hybrid electric vehicles HEV and lighting systems. A buck converter step-down converter is a DC-to-DC power converter that steps down voltage while stepping up current from its input supply to its output load. It is a class of switched-mode power supply SMPS typically containing at least two semiconductors a diode and a transistor, although modern buck converters frequently replace the diode with a second transistor used for synchronous rectification and at least one energy storage element, a capacitor, inductor, or the two in combination.

Switching converters such as buck converters provide much greater power efficiency as DC-to-DC converters than linear regulators, which are simpler circuits that lower voltages by dissipating power as heat but do not step up output current. The conceptual model of the buck converter is best understood in terms of the relation between the current and voltage of the inductor.

The load may be connected across the voltage regulator. Commonly the bridge rectifier is used in regulated power supply. Its function is to convert the AC mains voltage to the rectified DC voltage. The voltage contains small amount of ripple the pulsating voltage is passed through the filter circuit. Its function is to bypass the filter. It is the best solution. We would like to actually get into the next circuits. I always try to make Electronics Learning Easy.

Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content Posted in Basic Electronics. Note: See example circuits I see you sleepy. Related Posts. Tags: DC converter step down voltage. Apichet Garaipoom. I love electronic circuits. I will collect a lot of circuit electronics to teach my son and are useful for everyone.

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