Dynamo Voltage Regulator Circuit

Simple electromechanical relay circuits such as this one were very common in automotive electrical systems during the 1950 s 1960 s and 1970 s.

Dynamo voltage regulator circuit. It may use an electromechanical mechanism or electronic components. Well this is a collection of voltage regulator circuits using the lm317 ic which is an adjustable voltage regulator. Lm317 is a three terminal adjustable regulator from national semiconductors and it s input can range up to 40 volts. The voltage regulator as it names suggests regulates the fluctuating voltages supplied by the dynamo into something more usable by the motorbikes electrical system.

In the most basic terms it consists of two electrical contacts switches which are opened and closed turned off and on by two sets of solenoid coils. A voltage regulator is a system designed to automatically maintain a constant voltage level. A dc voltage regulator is a device which maintains the output voltage of an ordinary power supply constant irrespective of load variations or changes in input a c. Adjustable voltage regulator circuit using lm317.

Generally electronic circuits using tubes or transistors require a source of d c. A voltage regulator may use a simple feed forward design or may include negative feedback. Where a system takes action to oppose any change in a certain variable. In this case the variable is generator output voltage.

It controls output by sensing the voltage v out at a power generating coil and comparing it to a stable reference.