5V power supply using 7805 IC with circuit diagram
The circuit for a 5V power supply utilizing the IC 7805 voltage regulator is a straightforward and efficient design that provides a stable output voltage of 5 volts from a higher input voltage. The IC 7805 is a linear voltage regulator that can handle input voltages ranging from 7V to 35V, making it suitable for various applications where a regulated 5V supply is required.
The basic schematic of the circuit consists of the following components:
1. **Input Capacitor (C1)**: A capacitor, typically in the range of 0.33μF, is connected at the input of the 7805. This capacitor helps to filter out any high-frequency noise from the input voltage source, ensuring a cleaner input signal for the regulator.
2. **Voltage Regulator (IC 7805)**: The central component of the circuit is the 7805 voltage regulator. It has three terminals: the input (Vin), ground (GND), and output (Vout). The input terminal receives the higher voltage, the ground terminal is connected to the circuit ground, and the output terminal provides the regulated 5V output.
3. **Output Capacitor (C2)**: A capacitor, usually around 0.1μF, is connected to the output of the 7805. This capacitor serves to improve the transient response of the regulator and filter any output noise, ensuring that the output voltage remains stable under varying load conditions.
4. **Heat Sink**: Depending on the load current drawn from the regulator, a heat sink may be required to dissipate heat generated by the 7805. The maximum output current for the 7805 is typically 1A, and if the voltage drop across the regulator is significant, the heat generated can exceed safe operating temperatures without a heat sink.
The circuit operates by allowing the input voltage to pass through the 7805, which internally regulates the voltage down to 5V. The output voltage is maintained constant despite variations in the input voltage or the load current, as long as the input voltage remains within the specified range and the load does not exceed the current limit.
This 5V power supply circuit is widely used in various electronic projects, including microcontroller power supplies, sensor circuits, and other applications requiring a stable 5V source. The simplicity of the design, along with the availability of the 7805 component, makes it a popular choice among engineers and hobbyists alike.A 5V power supply using IC 7805 is designed and explained with a neat circuit diagram.. 🔗 External reference
Related Circuits
Only one channel of this circuit is shown. The other is practically identical. The input to the circuit, taken from the speaker output of a car radio, is divided into two paths. In one path, a high-power divider network...
The incoming AC is routed to the primary terminals of a 12.6-volt transformer. The hot side of the AC is connected through a fuse and a single-pole single-throw (SPST) toggle switch. When the switch is in the OFF position,...
The team is highly interested in the design of a jammer circuit and has begun working on it. However, they are experiencing issues with the circuit, specifically that the signal is not being jammed effectively. The design of a jammer...
USB Battery Charger for Lithium Ion batteries using the LM3622 is a specialized charger circuit designed to operate with power sourced from a USB connection. The current consumption of the LM3622 is limited to 400mA by a resistor (R1),...
Up to eight players each have their own answer button to press, corresponding to the four Red Team and four Green Team LEDs on the master control board. As soon as the first contestant who thinks they know the...
An electromagnetic vibration table or feeder is designed to move small objects along a specific track or cylindrical path through forced vibrations. This device can be custom-built to facilitate the movement of items along a rail tube. The vibration...