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AC to DC Power Supply with Voltage Regulation and Multimeter Monitoring

Image of AC to DC Power Supply with Voltage Regulation and Multimeter Monitoring

Circuit Documentation

Summary of the Circuit

The circuit described by the provided inputs appears to be a simple power supply circuit that takes an AC input, rectifies it to DC using a bridge rectifier, filters the DC using an electrolytic capacitor, and then regulates the voltage using a 7808 voltage regulator. The output voltage is likely to be measured by a multimeter. The absence of microcontroller code suggests that this circuit does not include any programmable logic or control elements.

Component List

Bridge Rectifier

  • Description: A bridge rectifier is a device that converts alternating current (AC) to direct current (DC). It consists of four diodes arranged in a bridge configuration to provide full-wave rectification.
  • Purpose: To rectify the AC input to DC.

AC Supply

  • Description: An AC supply provides an alternating current source to the circuit.
  • Purpose: To provide the input power to the circuit.

Transformer

  • Description: A transformer is used to step down or step up the voltage level of an AC supply.
  • Purpose: To adjust the AC voltage level to a suitable value before rectification.

Electrolytic Capacitor

  • Description: An electrolytic capacitor is a type of capacitor that uses an electrolyte to achieve a larger capacitance per unit volume than other types of capacitors.
  • Purpose: To filter out the ripples from the rectified DC and to smooth the output.
  • Properties: Capacitance value of 0.00047 Farads.

7808 Voltage Regulator

  • Description: The 7808 is a voltage regulator integrated circuit (IC) that provides a constant 8V output.
  • Purpose: To regulate the filtered DC voltage to a stable 8V output.

Multimeter

  • Description: A multimeter is an instrument used to measure electrical parameters such as voltage, current, and resistance.
  • Purpose: To measure the output voltage of the circuit.

Wiring Details

Bridge Rectifier

  • Source_in-: Connected to pin 5 of the Transformer.
  • Source_out-: Common ground net, connected to the negative pin of the Electrolytic Capacitor, COM pin of the Multimeter, and GND pin of the 7808.
  • Source_out+: Connected to the positive pin of the Electrolytic Capacitor and INPUT pin of the 7808.
  • Source_in+: Connected to pin 3 of the Transformer.

AC Supply

  • +ve: Connected to pin 1 of the Transformer.
  • -ve: Connected to pin 2 of the Transformer.

Transformer

  • Pin 5: Connected to Source_in- of the Bridge Rectifier.
  • Pin 1: Connected to the +ve of the AC Supply.
  • Pin 2: Connected to the -ve of the AC Supply.
  • Pin 3: Connected to Source_in+ of the Bridge Rectifier.

Electrolytic Capacitor

  • -: Common ground net, connected to Source_out- of the Bridge Rectifier, COM pin of the Multimeter, and GND pin of the 7808.
  • +: Connected to Source_out+ of the Bridge Rectifier and INPUT pin of the 7808.

7808 Voltage Regulator

  • INPUT: Connected to the positive pin of the Electrolytic Capacitor and Source_out+ of the Bridge Rectifier.
  • GND: Common ground net, connected to the negative pin of the Electrolytic Capacitor, COM pin of the Multimeter, and Source_out- of the Bridge Rectifier.
  • OUTPUT: Connected to the V pin of the Multimeter.

Multimeter

  • COM: Common ground net, connected to the negative pin of the Electrolytic Capacitor, Source_out- of the Bridge Rectifier, and GND pin of the 7808.
  • V: Connected to the OUTPUT pin of the 7808.
  • A: Not connected in the provided net list.

Documented Code

No code has been provided for any microcontrollers in the circuit. Therefore, there is no code documentation required for this circuit.