Typical circuit of three-terminal fixed stabilizerb

Three-terminal fixed integrated voltage regulators are divided into two series: 7800 positive voltage regulator and 7900 negative voltage regulator. When the difference between the output voltage (that is, the regulated voltage value)
reaches 0. 8V, it can maintain its operating characteristics. This is due to the unusual connection method adopted by operational amplifier
A. There are many types of voltages from 5 to 24V, and the output current is all 1.5A. For example, model 7805 has a +5v output, and model 7912 has a -12V output. The voltage
regulator has overcurrent, overheating and safe working area protection inside to prevent the voltage regulator from being damaged due to overload. The typical
wiring and appearance of the three-terminal fixed voltage regulator are shown in Figure 14-51. The capacitor Cl can generally be selected according to the capacity of 1000y, F per 0.SA current.