Abstract
the cocurrent voltage-stabilized source widely applies in each kind of electronic products, the different electric circuit to power source's request is different. Needs one kind in many electronic installations and the electric circuit, when the network voltage fluctuation or the load changes, the output voltage still could maintain the invariable power source basically. In electronic installation's power source by exchanges the electrical network to provide generally, passes through the live pressure, the rectification, the filter again, and the constant voltage four main part constitutions. How does this design's primary coverage revolve to cause the series adjustable cocurrent voltage-stabilized source output DC voltage to be stable, the pulsation ingredient reduces launches. First introduced voltage-stabilized source's design method, then introduced the electric capacity filter circuit's performance characteristic, then introduced various units circuit design simulation, and used in the electric circuit enhanced the stability, enhanced the temperature stability and the current limiting overflow protection circuit's specific measures, guaranteed the electric circuit safe stable work.
key word: The power source, the constant voltage, the rectification, the filter, protect
