Patent ID: 6069470
Filing Date: 2000-05-30
Classification: G05F

Abstract:
A circuit configuration for producing a load-independent DC voltage, comprising:a first rectifier configuration having an AC voltage terminal and two output terminals;a current control configuration for controlling the mains current consumption, said current control configuration being connected to said output terminals of said first rectifier configuration, having two output terminals, and an input terminal;a second rectifier configuration connected to said output terminals of said current control configuration and having output terminals furnishing an output voltage;a voltage measurement configuration connected to said output terminals of said second rectifier configuration, said voltage measurement configuration providing a voltage signal;a feedback branch connected to receive the voltage signal from said voltage measurement configuration and to feed the voltage signal back to said input terminal of said current control configuration, said feedback branch including a control configuration with an integrator;a function generator connected downstream of said control configuration in said feedback branch, said function generator producing an output signal which depends on an input signal according to a function f(x), wherein a derivative of the function f(x) is dependent on an input signal, the derivative rises at least partly with an increasing input signal, and said function generator produces the output signal selected from the group consisting of in accordance with a function f(x)=c+a.sup.bx or f(x)=c+x.sup.n, wherein a, b, c and n are constant real numbers.