dual voltage power supply 12 volt

Circuit Home 7809 7812 7909 7912 Dual Voltage Hobby Electronics Hobby electronics projects RC filters REGULATOR transformer Dual Voltage Power Supply 12 Volt This is the simple circuit diagram of a Dual Voltage Power Supply. It is used for miscellaneous applications. This circuit is known as a regulated power supply. For this reason, the main component of this circuit is the Regulator IC. It also requires a few components to build. The regulator 7812 is the positive voltage regulator, and the 7912 is the negative voltage regulator. It regulates voltage from 24 Volts to 12 Volts (DC). The transformer input is 110 Volts to 220 Volts (AC), and the output must be between 12 Volts to 24 Volts (AC) with a current rating of 500 mA. In this circuit, some capacitors are used as filters for removing ripple.

The dual voltage power supply circuit is designed to provide both positive and negative regulated output voltages, specifically 12 Volts DC. This is achieved through the use of two voltage regulator integrated circuits (ICs): the 7812 for positive voltage regulation and the 7912 for negative voltage regulation. The circuit typically takes an AC input from a transformer, which can handle a range of 110 to 220 Volts AC, and steps it down to a lower AC voltage in the range of 12 to 24 Volts AC.

The transformer plays a critical role in this circuit by converting high-voltage AC into a lower voltage suitable for the regulators. The output from the transformer must be rated to supply sufficient current, with a minimum requirement of 500 mA to ensure adequate power for various applications.

To smooth out the output voltage and reduce voltage ripple, capacitors are incorporated into the design. These capacitors act as filters, absorbing fluctuations in voltage and providing a more stable DC output. The use of filter capacitors is essential for maintaining the performance of the power supply, especially in sensitive electronic applications where voltage stability is crucial.

In summary, this dual voltage power supply circuit is a versatile solution for powering various electronic devices that require both positive and negative voltage rails. It is relatively simple to construct and can be adapted for different applications by modifying component values and specifications as needed.Circuit » Home » 7809 » 7812 » 7909 » 7912 » Dual Voltage » Hobby Electronics » Hobby electronics projects » RC filters » REGULATOR » transformer » Dual Voltage Power Supply 12 Volt This is the simple circuit diagram of Dual Voltage Power Supply. It is used for Misc application. This circuit is called regulated power supply. For thi s reason the main component of this circuit is Regulator IC. It also needs few components to built. The regulator 7812 is the positive voltage regulator and 7912 is the negative voltage regulator. It regulates voltage from 24Volt to 12 Volt (DC). The transformer input is 110Volt to 220Volt (AC) and the output must be between 12Volt to 24Volt (AC) and current must be 500mA. In this circuit some capacitors are used as a filter for removing repole. 🔗 External reference