Current-Limited Rectifiers

Several ac rectifier circuits have the property, inherent in the rectification process, of limiting their output current to a specified maximum. They are technically simple and can be used as the foundation for power supplies that remain undamaged and absorb little power with a short-circuited load. In combination with a dc regulator, such a rectifier provides a constant-voltage supply with desirable overload characteristics. A modified bridge rectifier is especially useful.