Design with 4R7 Voltage Regulator in Cirkit DesignerThe 4R7 Voltage Regulator is a compact and efficient electronic component designed to maintain a constant output voltage of 4.7 volts. It ensures a stable power supply to sensitive electronic circuits, protecting them from voltage fluctuations and ensuring reliable operation. This regulator is commonly used in low-power applications, such as microcontroller-based systems, sensors, and portable devices.
This circuit is designed to provide a stable output voltage from an input voltage source. It uses an LD1117 voltage regulator in conjunction with an electrolytic capacitor on the input side and a tantalum capacitor on the output side to filter noise and stabilize the voltage. The common ground ensures a reference point for all components.
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This circuit is a regulated power supply with a 12V battery input, a 7805 voltage regulator providing a 5V output, and a potentiometer for adjustable voltage control. It includes transistors and resistors for current regulation and an LED indicator to show the operational status.
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This circuit is a regulated power supply that converts 220V AC to a lower, stable DC voltage. It includes a step-down transformer, bridge rectifier, voltage regulator, and filtering capacitors. A 7-segment display indicates the output voltage, which can be adjusted using a potentiometer.
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This circuit is a power regulation and LED indication system. It uses an LM317 voltage regulator to provide a stable output voltage, with resistors and capacitors for filtering and stabilization. The circuit also includes red and green LEDs to indicate the status of the power supply.
Open Project in Cirkit DesignerThe following table outlines the key technical details of the 4R7 Voltage Regulator:
| Parameter | Value |
|---|---|
| Output Voltage | 4.7V ± 2% |
| Input Voltage Range | 6V to 20V |
| Maximum Output Current | 1A |
| Dropout Voltage | 1.1V (typical) |
| Quiescent Current | 5mA (typical) |
| Operating Temperature | -40°C to +125°C |
| Package Type | TO-220, SOT-223, or similar |
The 4R7 Voltage Regulator typically has three pins. The pinout is as follows:
| Pin | Name | Description |
|---|---|---|
| 1 | Input (VIN) | Connect to the unregulated input voltage source. |
| 2 | Ground (GND) | Connect to the circuit ground. |
| 3 | Output (VOUT) | Provides the regulated 4.7V output voltage. |
Below is a simple circuit diagram for using the 4R7 Voltage Regulator:
Unregulated Power Source (+) ---- VIN (Pin 1)
Unregulated Power Source (-) ---- GND (Pin 2)
VOUT (Pin 3) -------------------- Load (+)
GND (Pin 2) --------------------- Load (-)
The 4R7 Voltage Regulator can be used to power an Arduino UNO by providing a stable 4.7V supply to its 5V pin. Below is an example Arduino code to blink an LED when powered by the 4R7 regulator:
// Simple LED Blink Example
// This code assumes the Arduino UNO is powered by the 4R7 Voltage Regulator.
const int ledPin = 13; // Built-in LED pin on Arduino UNO
void setup() {
pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}
void loop() {
digitalWrite(ledPin, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(ledPin, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
Output Voltage is Incorrect:
Regulator Overheating:
No Output Voltage:
Noise or Instability in Output Voltage:
Q: Can I use the 4R7 Voltage Regulator with a 5V input?
A: No, the input voltage must be at least 6V to ensure proper regulation.
Q: What happens if I exceed the maximum current rating?
A: Exceeding the 1A current rating may cause the regulator to overheat or shut down to protect itself.
Q: Can I use the 4R7 Voltage Regulator without capacitors?
A: While it may work in some cases, it is highly recommended to use the specified capacitors to ensure stable operation and prevent oscillations.
Q: Is the 4R7 Voltage Regulator suitable for battery-powered devices?
A: Yes, it is commonly used in battery-powered devices, provided the input voltage is within the specified range.