Current and voltage regulation method to improve electromagnetice compatibility performance

A method for providing current and voltage regulation to improve electromagnetic compatibility performance operation of an IC device, the method comprising:

• providing, at an output of a current regulator circuit, a voltage signal, the voltage signal exhibiting noise from a load;
• comparing a voltage level of the voltage signal to a desired voltage level to determine a first noise level;
• modulating a regulation current on the output based upon the comparison of the voltage level of the voltage signal to the desired voltage level;
• and
• providing a current regulated voltage signal on the output based upon the regulation current using a constant current source to provide a constant current and a FET that includes a source electrode coupled to the output, a drain electrode coupled to the constant current source, and a gate electrode coupled to a voltage clamp circuit.

An integrated circuit device, comprising:

• a voltage regulator to provide a regulated voltage signal;
• a load to receive a current regulated voltage signal, the current regulated voltage signal being provided at a desired voltage level and includes a first noise level;
• and
• a current regulator including an input to receive the regulated voltage signal from the voltage regulator and to provide the current regulated voltage signal to the load, the current regulator configured to:
• compare a voltage level of the current regulated voltage signal to the desired voltage level to determine the first noise level;
• modulate a regulation current on an output of the current regulator circuit based upon the comparison of the voltage level of the regulated voltage signal to the desired voltage level using a constant current source to provide a constant current and a FET that includes a source electrode coupled to the output, a drain electrode coupled to the constant current source, and a gate electrode coupled to a voltage clamp circuit;
• and
• provide the current regulated voltage signal on the output based upon the regulation current, wherein the current regulated voltage signal includes a second noise level that is lower than the first noise level.