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What will be the output voltage of 7912 IC regulator?
This is the IC 7912. 79xx voltage regulators are very commonly used in electronic circuits. The main purpose of this IC is to supply required regulated negative voltage to the circuits….79xx ICs and Output Voltages.
| IC Number | Output Voltage |
|---|---|
| 7905 | -05 Volts |
| 7912 | -12 Volts |
| 7915 | -15 Volts |
| 7918 | -18 Volts |
How do I test a 7912 voltage regulator?
LM7912 belongs to the family of Voltage regulators. The name “79” indicates negative and the term “12” indicates the voltage. So “7912” means that this IC will regulate a negative 12V for your projects. You can also check on 78 series for positive voltage regulators.
What is a LM7905?
They provide a constant output voltage for a varied input voltage. In our case the 7905 IC is an negative 5V regulator, meaning it provides -5V as output. The name 7905 signifies two meaning, “79” means that it is a negative voltage regulator and “05” means that it provides 5V as output.
How does a negative voltage regulator work?
If the input voltage conditions are not applied, the regulator simply works as a resistive circuit where input is equal to output. LM7912 is a negative voltage regulator used for regulating negative voltages. These are specially designed to regulate negative voltages. The output voltage of LM7912 is -12V.
What does a negative voltage regulator do?
The LM7915 is a negative voltage regulator, it takes a negative voltage (of around – 20 V) and makes a stable -15 V from that. Such a supply is often used to power circuits with opamps like audio amplifiers. If the positive voltage regulator is the NPN version, the negative voltage regulator is the PNP version.
What does lm7912 stand for in voltage regulator?
LM7912 belongs to the family of Voltage regulators. The name “79” indicates negative and the term “12” indicates the voltage. So “7912” means that this IC will regulate a negative 12V for your projects. You can also check on 78 series for positive voltage regulators.
Which is the ground pin in a negative 12 volts regulator?
Pinout diagram shows that this negative 12 volts regulator has three pins such as input, output and ground pin. It is a three-terminal device whose pin details are enlisted below. The ground pin is connected to the ground of the circuit. The unregulated voltage signal is applied at the input pin.
When to use positive or negative voltage regulators?
The positive voltage regulator (LM7812) and negative voltage regulator (LM7912) is used in this project. The circuit diagram is given below. Sometimes, we are not able to find electronics components in the market, we can use alternative/ Equivalent regulators. It is used in fixed voltage applications.
Why is lm7912 IC used in microcontrollers?
Microcontrollers need a smooth and regulated voltage at the input to function smoothly. Therefore, LM7912 IC is used for generating smooth voltage. It is also useful in designing split power supplies and sensors. Most importantly, it can operate over 0 to 50 °C temperature range.