1.5V DC Power Supply Circuit | 1.5V to 5V Converter
1.5V to 5V Converter - Electronic Project
Introduction:
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One problem that is always faced by circuit diagram designers and especially by beginner students is the stress of different voltages at different levels. Further, the problem increases more when the circuit diagrams are smaller and when we are working on smaller voltages. Thus, we cannot deny that it is difficult to increase the voltages from a lower voltage to a higher voltage which is not that much higher. As for the beginner student, it is the real issue. Since we always try to come up with circuit diagrams that may help the beginner. Therefore, in this tutorial, we are going to Make a “1.5V to 5V Converter”. The circuit diagram is easy to make and requires fewer electronic components.
Diagram of 1.5V DC Power Supply Circuit:
Hardware Required for this Project:
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Working Principle of 1.5V DC Power Supply Circuit:
Power Supply Management Integrated Circuit (PMIC) for Complex Electronic Circuits Diagram to Supply Required Power. If we design a simple Standalone circuit with few low-power electronic components then we need an Individual Standalone power source or Voltage Regulator circuit diagram. Here Simple 1.5V DC Power Supply Circuit diagram was designed by using IC LM317 to give a Regulated Constant 1.5V DC power supply. This Simple 1.5V DC Voltage Regulator circuit diagram can be used in any circuit or device that requires a constant 1.5V DC supply. Here this circuit diagram converts 230V AC to 1.5V DC with the help of a Stepdown transformer, Bridge Rectifier, or Voltage Regulator IC LM317.
This Circuit diagram is designed to convert 230V AC to 1.5V DC, As we know in order to obtain low voltage from high voltage AC we need to use a Stepdown transformer. Here 230V AC to 6V AC output of the Stepdown transformer is used. 6V AC supply from the secondary winding of the step down to the transformer is directly applied to the Bridge Rectifier module, you can use either the bridge rectifier module and four 1N4007 diodes in bridge rectifier form. Here the 6V AC is Converted into a 6V DC supply then this unfiltered DC is applied to the filter of the capacitor C1 and then filtered DC is applied to the Regulator IC LM317 (Package To-220) this IC has three terminals, terminal 1 (Adjust), and terminal 2 (output) are connected with feedback Resistor R1 and R2, by Varying these two Resistors value we could get our desired output voltage from 1.25V to 37V (if we apply enough input voltage to the terminal 3) and output current flow up to 1.5 Amps.
Construction and Operation of this circuit diagram is the Same as the Previous circuit. But here we introduced two LEDs to indicate the Input voltage (Red LED) to the Regulator and the Output of the Voltage (Green LED) from the LM317 Regulator.LM317 is a three-terminal Adjustable Voltage Regulator Capable of Supplying up to 1.5 Amps output current flow and 1.25 to 37 Output of voltage.
The LT1173 is a gated oscillator of the switcher. This type of architecture has a very low supply current flow because the switch is cycled only when the feedback pin voltage drops below the reference voltage. Circuit diagram operation can best be understood by referring to the LT1173 block diagram. Comparator A1 compares the feedback pin of the voltage with the 1.245V reference voltage. When feedback drops below 1.245V, A1 of the switches on the 24kHz oscillator. The driver amplifier boosts the signal level to drive the output NPN power supply switch. An adaptive base drive circuit diagram senses switch current and provides just enough base drive to ensure switch saturation without overdriving the switch, resulting in higher efficiency. The switch cycling action raises the output voltage and feedback pin voltage. When the feedback of the voltage is sufficient to trip A1, the oscillator is gated off.
The 70kHz oscillator allows the use of surface-mount inductors and capacitors in many applications. Quiescent current flow is just 300µA, making the device ideal in remote and battery-powered applications where current flow consumption must be kept to a minimum. The device could easily be configured as a step-up or step-down converter, although most step-down applications and input sources greater than 3V, the LT1111 is recommended. Switch current flow limiting is user-adjustable by adding a single external resistor. Unique reverse battery protection circuitry limits reverse current flow to safe, nondestructive levels at reverse supply voltages up to 1.6V.
Frequently Asked Questions
What does it mean when it says 1.5 volts on the battery?
A classic nominal voltage, most AA, AAA, C, & D cells are 1.5 volts, or many household and handheld devices have been built to use that voltage. The first zinc-carbon dry cells naturally produced 1.5 volts of energy and have remained the standard ever of since.
What resistor do I need to drop 5V to 1.5 V?
Conceptually, put a 3.7 ohm & a 5–3.7 = 1.3-ohm resistor in series, with the 1.3-ohm resistor connected to the +5 V supply, and the 3.7-ohm resistor of the connected to ground (the - connection on the 5V supply).
What is 5V voltage?
(5 Volts) A standard of voltage is required by chips and drives in a computer. The power supply converts 120v alternating current flow (AC) into 5 volts of direct current flow (DC), as well as 3.3v and 12v.
How many volts is a 1.5 V battery?
A standard single dry cell battery produces a voltage of 1.5 Volt, with its current flow dependent on the size of the cell. The bigger the cell, the bigger the current flow. 9 Volt batteries used in larger flashlights are really a series of 6 cells and batteries in a single case.
Why do we use 5 volts?
5 volts was chosen because it could handle up to four bipolar transistors (1.2 V drops from emitter to collector) in series between the rails. As chip technology advanced to the CMOS devices, the power supply requirements became less strict, and chip manufacturers drove the supply of the voltages lower to reduce Power supply Consumption.
