Electronic Project

adjustable power supply 48v 60a - Electronic Project

Introduction:

Virtually every piece of electronic equipment, e.g., computers and their peripherals, calculators, TV and hi-fi equipment, or instruments, is powered by a DC power source, be it a battery or a DC power supply.Most of this equipment requires not only the DC voltage but voltage that is also well filtered and regulated.Since power supplies are so widely used in electronic equipment, these devices now comprise aworldwide segment of the electronics market in excess of $5 billion annually. There are three types of electronic power supply conversion devices in use today which are classified as follows according to their input and output of the voltages: 1) DC/DC converter; 2) the AC/DC power supply; 3) the DC/AC inverter. Each has its own area of use but this paper supply will only deal with the first two, which are the most commonly used.

illustrates two common linear power supply circuits in current flow use. Both circuits employ full-wave rectification to reduce ripple voltage to capacitor C1. The bridge rectifier circuit diagram has a simple transformer but current must flow through two diodes. The center-tapped configuration is preferred for low output of the voltages since there is just one diode of the voltage drop. For 5V or 12V outputs, the Schottky barrier of the diodes is commonly used since they have lower voltage drops than equivalently of the rated ultra-fast types, which further increases power supply conversion efficiency. However, each diode must withstand twice the reverse of the voltage that a diode sees in a full-wave bridge for the same input of the voltage.

The linear voltage of the regulator behaves as a variable resistance between the input and the output as it provides the precise output of the voltage. One of the limitations to the efficiency of this circuit diagram is due to the fact that the linear device must drop the difference in voltage between the input and output. Consequently, the power supply dissipated by the linear device is (Vi–Vo ) × Io. While these supplies have many desirable characteristics, such as simplicity, low output of the ripple, excellent line and load regulation, fast response time to load and line changes, and low EMI, they suffer from low efficiency and occupy large volumes. Switching power supplies is becoming popular because it offers better solutions to these problems.

Diagram of 48V 60A 3600W DC Power Supply:

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Working Principle of 48V 60A 3600W DC Power Supply:

DC/DC power supplies are part of many products since electronic devices use DC power supply, including portable electronics, such as laptop computers or mobile phones, which are sourced with energy from batteries. Such devices have several small circuits with each having its own requirements for levels of voltage that differ from the one supplied by the battery and an exterior supply, which is often lower or higher than that of the supply of the voltage. Some larger DC/DC power supplies are used to optimize the power supply yield from photovoltaic systems and to charge batteries. Most DC/DC power supplies regulate the voltage output, such as LED power supplies.

Efficiency, regulation time, weight or size, residual ripple, costs, and fields of application are the most important factors to be considered when selecting a power supply for new engineering applications or the upgrading of existing installations. A larger capacitor size could provide higher capacity and longer buffering time, but this is not desirable in small power supplies. Hence, the power supply should be optimized to have the "just right" buffering time and capacitor size.

Ordinary four-bit 300W switching DC power supply, LED intuitive display of voltage, current, and output power, with 10mV/1mA high-precision resolution; with short-circuit, over-voltage, over-current, reverse polarity protection, high stability, and reliability; a key to control the output on/off switch, convenient and safe. Widely used in product aging maintenance, battery charging, experimental testing, production testing, electrolysis of the plating, and other industries.

The input voltage, output voltage and frequency, and overall power supply handling depend on the design of the specific device or circuitry. The inverter does not produce any power supply; the power is provided by the DC source. A power supply inverter can be entirely electronic or maybe a combination of mechanical effects (such as a rotary apparatus) or electronic circuitry. Static inverters do not use moving parts in the conversion of the process. Power supply inverters are primarily used in electrical power supply applications where high currents and voltages are present; circuit diagrams that perform the same function for electronic signals, which usually have very low current flow and voltages, are called oscillators. Circuit diagrams that perform the opposite function, converting AC to DC, are called rectifiers.

An inverter may produce a square wave, sine wave, modified sine wave, pulsed sine wave, or near-sine pulse-width modulated wave (PWM) depending on the circuit diagram design. Common types of inverters produce square waves or quasi-squares of the waves. One measure of the purity of a sine wave is the total harmonic distortion (THD).[4] Technical standards for commercial power distribution grids require less than 3% THD in the wave shape at the customer's point of connection. IEEE Standard 519 recommends less than 5% THD for systems connecting to a power grid. There are two basic designs for producing the household plug-in voltage from a lower-voltage DC source, the first of which uses a switching boost to the converter to produce a higher-voltage DC and then converts it to AC. The second method converts DC to AC at the battery level and uses a line-frequency transformer to create the output of the voltage.

Frequently Asked Questions

What is the type of DC voltage usually produced by a power supply?

A DC voltage with typical values, 5V, 12V, 24V, or 48V, could also be accepted by a DC power supply as an input. The output voltage could also be generated; this ranges from less than a volt to >1000 volts DC.

What is the introduction of regulated power supply?

A regulated power supply (also known usually as a linear power supply) ensures that the output current flow remains constant, even if the input changes, by converting unregulated AC (alternating current) to a constant DC (direct current flow).

What is the introduction of power supply?

A power supply is an electrical device that offers an electric power supply to an electrical load such as a laptop computer, server, or other electronic devices. The main function of a power supply is to convert electric current flow from a source to the correct voltage, current, and frequency to power supply the load.

How does a regulated power supply work?

A regulated power supply (RPS) is an embedded circuit, used to convert unregulated alternating current flow into a stable direct current by using a rectifier. The main function of this is to supply a constant voltage to a circuit diagram that should function in a particular power supply limit.

Why DC power supply is used?

A programmable DC power supply is used by engineers to test a component, circuit diagram, or electronic devices, such as IoT devices, medical products, mobile phones, and remote industrial sensors. The DC power supply allows engineers to set and supply specific voltages to power supply the device to confirm it's working as intended.

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