Adjustable output three-terminal regulator

Three-terminal regulator, there are two types of output voltage is fixed, called fixed output three-terminal regulator, the output voltage is Circuit breaker by another, called the adjustable output three-terminal regulator, its basic principle is the same, are used in series regulator circuit. Linear air circuit breaker, since the three-terminal power transformers three lead terminal, with fewer external components, easy to use, stable performance, low cost, etc., which are widely used.