L7915ACV

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Linear Voltage Regulators are electrically controlled sources that take in one voltage and produce an output voltage that is much steadier than the input voltage. Many applications require power with a very constant and low ripple voltage, and linear voltage regulators are the ideal solutions for these industries. The L7915ACV is a typical example of a lower volt regulator and its applications and working principle will be discussed in detail below.

Application Field of L7915ACV

The L7915ACV is an adjustable voltage regulator chip with an output voltage range from 1.25V to 37V. Its maximum current output is of 1.5A, and its maximum power output is of 40W. The main uses of this chip are for low voltage applications, such as creating voltage regulators for 1.5V-5V devices, LED lamps, electric fans, disc memories, and digital cameras. The chip also has applications in notebook PCs, desktop PCs, audio video systems, and game consoles. It is also used in automotive applications, such as automotive transformers and engines. Additionally, the chip can be used in medical equipment such as medical displays, infusion pumps, and defibrillators.

Working Principle of L7915ACV

The working principle of a linear voltage regulator is simple to understand. It consists of a variable resistor that is adjusted until the output voltage produced is equal to the preset output voltage. The microcircuit is then used to measure the difference between the actual output voltage and the preset output voltage. This is used to control the current that is enabled to flow between the input and output terminals. The voltage regulator adjusts itself so that when the output voltage drops, it increases the current, and vice versa. In addition, the L7915ACV has several protection features that are built into the chip. One of these is the thermal shutdown, which prevents the chip from becoming too hot. Another is the overload protection, which cuts off the current if it is too large. This is used to prevent damage to the chip due to excess current.

Conclusion

The L7915ACV is a type of linear voltage regulator that is used for lower voltage applications. It has a wide variety of applications, such as powering digital cameras, note book PCs, and medical equipment. Its maximum current output is of 1.5A, and its maximum power output is of 40W. The chip has several built in protections, such as thermal shutdown and overload protection. It works by measuring the difference between the actual output voltage and the preset output voltage, and then adjusting itself accordingly.

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