Best way to achieve 3.3v and 5v from 12v supply | Fixed 3.3 V Linear Voltage Regulators

Best way to achieve 3.3v and 5v from 12v supply | Fixed 3.3 V Linear Voltage Regulators

Best way to achieve 3.3v and 5v from 12v supply - Electronic Project


A simple voltage/current regulator can be made from a Circuit diagram resistor in series with a power supply diode (or series of diodes). Due to the logarithmic shape of diode V-I curves, the voltage across the diode changes only slightly due to changes in the current drawn or changes in the input. When precise voltage control and efficiency are not important, the power supply in this design may be currently fine. Since the forward voltage of a Circuit diagram diode is small, the project system with this kind of voltage regulator is only suitable for low power supply voltage-regulated output. When higher voltage Power supply output is needed, a zener Circuit diagram diode or series of zener diodes may be employed. Zener diode regulators make use of the zener diode's fixed reverse voltage, which can be quite large.

Feedback voltage regulators operate by comparing the actual output voltage to some fixed reference voltage. Any difference is amplified and used to control the Circuit diagram regulation power supply element in such a power supply way as to reduce the power supply voltage error Project System. This forms a negative and feedback control loop; as increasing the open-loop gain tends to increase regulation power supply accuracy but reduces project system stability. (Stability is avoidance of oscillation, or ringing, during step changes.) There will also be a trade-off between stability and the speed of the response to changes.

If the output voltage is too low (perhaps due to the input voltage and reducing or load current increasing), Project System the regulation element is commanded, power supply up to a point, to produce a higher output voltage–by dropping less of the circuit diagram input voltage (for linear series regulators and buck switching and regulators), or to draw input current for longer Circuit diagram periods (boost-type switching and regulators); as if the output voltage is too high, the regulation element will normally be commanded to produce a lower voltage. However, as many regulators have over-current protection, they will entirely stop Circuit diagram sourcing current (or limit the current in some way power supply) if the output current is too high, The project system and some regulators may also shut down if the input voltage is outside a Circuit Diagram given range (see also: crowbar circuits diagram).

Diagram of Fixed 3.3 V Linear Voltage Regulators:

fix 3.3v voltage regulator

Components Needed for this Project:

You can get the components from any of the sites below:

  1. Name [See Buy Click Amazon]
  2. Name [See Buy Click Amazon]
  3. Name [See Buy Click Amazon]
  4. Name [See Buy Click Amazon]
  5. Name [See Buy Click Amazon]
  6. Name [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

Read Also:

Working Principle of 12V 3A Switching Regulator circuit:

Some Sensitive Electronic Components, Sensors, or Microcontrollers Require a 3.3V DC supply as a power source. When we apply 5V or 12V to all Circuit diagrams and other components. Here is a simple voltage Regulator circuit 5V to 3.3V designed by using a tiny IC AMS1117. IC AMS1117 comes with a lot of ranges hence choose the exact IC. By using this voltage regulator circuit diagram we can convert 5V to 3.3V without occupying a lot of space in circuit diagram design.

This IC has only three terminals, input DC supply applied directly to the Vi Pin, and output 3.3V taken directly from Vo Pin, for both input and output voltages, there is a common GND pin. Here LED D1 indicates the presence of an input power supply. Capacitors C1 and C2 perform filter operation, Use tantalum capacitors for C1 and C2.

A voltage regulator is a circuit diagram that creates and maintains a fixed output voltage, as irrespective of changes to the power supply input voltage or load project system conditions. Voltage regulators (VRs) keep the voltages from a power supply within a Could range that is compatible with the other electrical Would components. While voltage and regulators are most commonly used for DC/DC power supply conversion, some can perform AC/AC or AC/DC power supply conversion as well. This article will focus on DC/DC voltage and regulators.

The LM2576 voltage and regulator is a monolithic IC that is suited ideally for a simple buck Circuit diagram converter design which is also known as a power supply step−down switching and regulator. This series of regulators in all the circuits is used for driving a 3.0A load through an outstanding line & load regulation. These regulators are available with fixed or power supply adjustable voltages.

These regulators are mainly designed to reduce the exterior components to abridge the design of the power supply. As compared to 3 terminal linear regulators, the project system the LM256 voltage and regulator’s efficiency are considerably higher, particularly currently through maximum input voltages.


Frequently Asked Questions

How do you regulate 5V to 3.3V?

The easiest way to convert a 5V analog Circuit diagram signal to a 3.3V analog signal is to use a power supply resistor divider with an R1:R2 ratio of 1.7:3 However, power supply there are some problems with circuit diagrams with this approach. 1) The attenuator may be connected to a power supply capacitive load, forming an undesired low-pass filter.

Why do voltage regulators fail?

To have voltage, the battery needs to have a power supply reliable ground, and connection. If the link is bad and the voltage is faulty, this can cause the regulator rectifier to run hotter than usual. Things like poor grounding, a loose or weak battery, and a worn battery and connection can all Circuit diagrams to lead to regulator rectifiers and failure.

What resistor do I need to drop 5V to 3.3 V?

Simply use a voltage divider power supply comprised of 2 resistors. One with twice the resistance of the other. You'll form a voltage divider which will output 2/3 of the voltage (3.3v on the point between the two resistors). Choose R2 to be twice as large as R1 (e.g. 10K + 20K ohms).

How to get 3.3 V from 9V?

There are basically 2 reasonable power supply approaches to making 3.3 V and 5 V power supply from 9 V. These are a linear power supply regulator and a buck project system converter. A linear regulator is like a self-adjusting series resistor. It keeps the output voltage power supply constant despite varying input current voltage.

Can I use 3.3 V in the relay?

That voltage won't hurt the relay but it can blow the connected circuitry. You should use a 5volt relay module, and power it from the 5volt supply of the Due. Many 5-volt relay modules can be controlled by a 3.3-volt logic pin.

Post a Comment

Do leave your comments

Previous Post Next Post



Blogging Experiment
Electronic Experiment Subscribe our Youtube Channel