Patent ID: 6127839
Filing Date: 2000-10-03
Classification: H03K

Abstract:
An attenuating circuit adapted to produce an output signal with reduced switching transients, the attenuating circuit comprising:a conductor coupled to a first voltage source, the conductor having an inductance;a primary circuit coupled to the conductor at a first location, the primary circuit receiving the first voltage source, a second voltage source, and at least one input signal, the primary circuit receiving the first voltage source through the conductor, the primary circuit having a first current draw responsive to the each input signal having a first state and having a second current draw responsive to each input signal having a second state, the primary circuit producing a first output signal in response to receiving each input signal;a smoothing circuit coupled to the conductor and having a dummy load, the smoothing circuit receiving the first voltage source, the second voltage source, and each input signal, the smoothing circuit applying a second output signal to the dummy load in response to receiving each input signal, the smoothing circuit receiving the first voltage source through the conductor, the smoothing circuit having a third current draw responsive to each input signal having the first state, and having a fourth current draw responsive to each input signal having the second state, the sum of the first and third current draws approximately equaling the sum of the second and fourth current draws.