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#Ic 7800 specifications series#
Constant Current the 78xx series can be made to regulate the current output at the given voltage.With microcontrollers the supply voltage may be used as a reference for an analogue input and without the regulator the reference would be changing resulting in different readings from the original. The Batteries lose their power through use the voltage drops and the voltage regulator helps maintain a constant voltage.The typical application one that we regularly use would be to power a microcontroller circuit requiring 5 volts from either a 12V or 9V battery. They are used for delivering a reasonably consistent voltage from a power supply that may have some minor variation.Voltage Regulators 78xx Family Application The 78xx series of voltage regulators are used in regulated power supplies. When required to supply a specific voltage to your circuit from a higher voltage input 78xx family of voltage regulators are champion still commonly used today in a considerable no of electronic devices due to their reliability robustness and simplicity. The 78xx Voltage regulators are sometime referred to as (L78xx, LM78xx, or MC78xx). The Alternative linear voltage regulators may be covered here in the future where case specific needs surface. The Buck converters may be considered as a more expensive alternative to linear voltage regulators where sufficient cooling or the efficiency may be an issue however buck converters may not be suitable in some sensitive circuits due to potential interference from the coil. So overheating will cause the component to shut down until it cools down sufficiently and some inferior quality units may result in component destruction. More the load or greater the input and the output voltage difference the more heat will be produced. The Efficiency is a main drawback of linear voltage regulators. Some different voltage ranges and precision voltage level as 3.3V required for microcontrollers.The higher power capacity greater than typical 1A limit although this mostly means larger heat sinks anyway.The lower drop out voltage the difference between the input voltage and output voltage regulated.There are many other linear voltage regulator families exist with features such as LM317 provides an adjustable technique filling the gap where the fixed voltage regulator isn’t available or a variable voltage supply is required. And 79xx series of voltage regulators perform in pretty much the same way but they are intended to output a negative voltage. Here 78xx series of voltage regulators are most commonly used to provide a stable output voltage from a slightly higher input voltage. The voltage regulation and current regulation can be done with a variation to some of the additional components. I would appreciate your support in this way! I may make a commission if you buy the components through these links. The common case is with micro controllers where a smooth regulated input voltage must be supplied for the micro controller to function smoothly. The regulated voltage without fluctuations and noise levels is very important for the smooth functioning of many digital electronic devices. The voltage regulator is one of the most frequent used electronic circuitry in any device. It also act to step up or step down a difference between supply and output voltages with additional functions possible through added circuitry. The Linear voltage regulators are components with or without associated circuitry which provide a stabilized output voltage from a potentially unstable power supply source. 78xx regulators Advantages and disadvantages.Voltage Regulators 79xx Family Negative Testing.Voltage Regulators 79xx Family Negative Models.Voltage Regulators 79xx Family Negative.