Power supply circuit
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230V AC LED Driver Circuit for Powering 2.5Watts LED Light AC LED driver circuits are overly popular due to the advancement of High current white LEDs. We already made a Transformerless LED driver circuit previously, but in that circuit, we used a dedicated LED driver IC like LNK304 to generate 13.6V 150mA of output current to power LEDs. But in this tutorial, we will not use any dedicated driver ICs, but we will make a 2.5 Watt AC… |
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How to Test a SMPS Power Supply Board To verify product functionalities and design parameters, a power supply circuit requires sophisticated testing methods and electronic test equipment. It is necessary to gather better knowledge about the SMPS testing requirements to fulfill product standards. In this article, we will learn how to test SMPS circuit and talk about some of the most basic tests for SMPS and the… |
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Build Your Own 5V, 1A Adjustable SMPS Using a Dead Computer ATX Power Supply A Switch Mode Power Supply (SMPS) is an indispensable part of any electronic design. It is used to convert mains high-voltage AC to low voltage DC, and it does it by first converting the mains AC to high voltage DC, then switching the high voltage DC to generate the desired voltage. We have already made a few SMPS circuits earlier, like this 5V 2A SMPS circuit and 12V 1A… |
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Design your own Compact 5V/3.3V SMPS Circuit for Embedded and IoT Projects A crude way to power your DC circuits with AC mains is to use a step-down transformer for stepping down the 230V mains voltage and adding a couple of diodes as a bridge rectifier. But due to the huge space size and other drawbacks, it cannot be used for all purposes. Another most popular and professional way is to use Switch Mode Power Supply Circuits for converting your AC… |
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Important Parameters to Consider When Selecting a Voltage Regulator A voltage regulator is a simple and cost-effective device that can change the input voltage to a different level at the output and can maintain a constant output voltage even in varying load conditions. Almost all electronic devices from your cell phone charger to air conditioners to complex electromechanical device uses a voltage regulator to provide the different DC… |
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Superheterodyne AM Receiver - Working with Block Diagram and Schematics A superheterodyne receiver uses signal mixing to convert the input radio signal into a steady intermediate frequency (IF) that can be worked with more easily than the original radio signal, which has a different frequency, depending on the broadcasting station. The IF signal is then amplified by a strip of IF amplifiers and then fed into a detector that outputs the audio… |
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Relaxation Oscillator using Op-amp An operational amplifier is an integral part of Electronics, and we previously learned about Op-amps in various op-amp-based circuits and also built many oscillator circuits using op-amps and other electronics components. An oscillator generally refers to the circuit which produces periodic and repetitive output, like a sine wave or square wave… |
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How to Design your own Transformer for SMPS Power Supply Circuits Designing an efficient Power Supply circuit is not less of a challenge. Those who have already worked with SMPS circuits would easily agree that the flyback transformer design plays a vital role in designing an efficient power supply circuit. Most times these transformers are not available off the shelf in the exact same parameter that suits our design. So in this… |
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Designing an AND Gate using Transistors As many of us know, an Integrated Circuit or IC is a combination of many small circuits in a small package which together perform a common task. An Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly, a Flip-Flop can be built by using a combination of Logic Gates and… |
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High Current Low Dropout Voltage Regulator Circuit using MIC29302 Whether it’s your Laptop, TV, Smartphone, or any other electronic device, they all operates at different voltages. These devices have sensitive components like Microprocessors, ICs, etc. that works on very low voltage, and even the slightest change in voltage can damage these components. These sensitive components require a steady and stable voltage to operate optimally. So… |
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How to design a 5V 2A SMPS Power Supply Circuit Power Supply Unit (PSU) is a vital part in any electronic product design. Most household electronic products like Mobile Chargers, Bluetooth Speakers, Power Banks, Smart Watches etc requires a Power Supply circuit that could convert the AC mains supply to 5V DC to operate them. In this project we will build a similar AC to DC power supply circuit with 10W power rating. That… |
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+5V and -5V Dual Power Supply Circuit Most of the Analog Electronic circuits require dual power supply rails for proper balanced operation; this gets especially critical if we are designing Operational amplifier circuits. Negative supply voltage is also required in digital systems like A/D converters, op amps and comparators. In all these cases, the current requirement will be low, but generating such a -5V… |
