What is the purpose of a variable voltage regulator circuit?
An adjustable voltage regulator produces a DC output voltage, which can be adjusted to any other value of certain voltage range. Hence, adjustable voltage regulator is also called as a variable voltage regulator. The DC output voltage value of an adjustable voltage regulator can be either positive or negative.
How does a variable voltage supply work?
A power supply can be given from the battery or from a hardware circuitry which converts the AC supply into the DC supply or step-down AC to step-up AC and vice-versa. A variable power supply is one which facilitates the user to vary and adjust the desired output voltage and output current.
What is a variable voltage controller?
A voltage controller, also called an AC voltage controller or AC regulator is an electronic module based on either thyristors, triodes for alternating current, silicon-controlled rectifiers or insulated-gate bipolar transistors, which converts a fixed voltage, fixed frequency alternating current (AC) electrical input …
How do you create a variable current power supply?
Design of Regulated section:-
- Step 1: Selecting regulator chip:
- Step 2: Selecting filter capacitor:
- Step 3: Selecting transformer:
- Step 4: Selecting diode.
- Step 5: Selecting capacitor.
What is the difference between fixed voltage regulator and adjustable regulator?
Adjustable Voltage regulators require a very few external components to achieve its operation. Fixed voltage regulators require almost no external components (may be a couple of bypass capacitors). At low cost you have a wide range of voltage and current selection.
How do you control voltage in a circuit?
To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors. At this point where the jumper wire is placed, the voltage will be one-half the value of the voltage supplying the circuit. The 5V is now 2.5V.
How you can make the dual power supply by using 2 single power supplies?
For a quick and simple dual power supply, use two resistors in series connected in parallel with two capacitors. Connect the two ends to the battery or power source and BAM! You have a dual power supply.
How do you stabilize voltage in a circuit?
The concept of stabilization involves in adding or subtracting the voltage to and from the mains supply. For performing such task stabilizer uses a transformer which is connected in different configurations with switching relays.
What are the rules for designing high voltage circuit boards?
While dealing with high voltage circuit boards, remember the basic rules for laying out the boards is that they will carry hazardous voltages. High voltage board designing requires an understanding of international safety standards such as IPC 2221A and UL 60950-1.
What is the difference between negative clamping and clamping circuit?
The clamping circuit requires only a diode and a capacitor and in the case of negative clamping the negative end of the diode is grounded and the wave is received at the other end through a capacitor. The circuit of the negative clamper is shown below:
What is creepage and clearance in high voltage circuit boards?
Creepage and clearance in high voltage circuit boards are the essential parts of all safety measures. That is why it is mandatory for the design engineers to meet the product safety standards throughout the entire design stage to avoid any chances of failure.
How to get variable voltage with LM317 IC?
With a small circuitry attached with LM317 we can get variable voltage up to 37v with 1.5A max current. The output voltage is varied by varying the resistor connected to LM317’s adjustable pin. It’s an adjustable three-terminal voltage regulator IC, with a high output current value of 1.5A.