Electrical circuits for power factor correction by measurement and removal of overtones and power factor maximization

An electrical circuit power supply with power factor correction, the electrical circuit power supply comprising:

• a switch-mode converter;
• a means for controlling the switch-mode converter with a first control signal in order to control currents in the switch-mode converter in order to control and regulate one of an input voltage or an input current, to control a wave form of an output current, and to maximize a power factor, the output current being delivered into a sinusoidal voltage source at a fundamental frequency;
• a means for measuring one of the input voltage or the input current and comparing one of the input voltage or the input current to a first reference signal, and generating a first error signal responsive to a first difference between the first reference signal and one of the input voltage or the input current, the first error signal having a first error frequency bandwidth;
• a current measurement means for measuring the output current and generating a current measurement signal from the output current;
• a means for generating a second reference signal comprising of an alternating current (AC) reference signal proportionately reduced from an output voltage by a means of a controlled voltage divider responsive to a second control signal;
• a first means for controlling a magnitude of a reduction of the output voltage and generating a second difference by subtracting the AC reference signal from the current measurement signal;
• and
• a means for generating the second control signal that is proportional to the second difference, the second control signal having a control signal frequency bandwidth, the second control signal driving the first means for controlling the magnitude in order to minimize the second difference.

An electrical circuit power supply with power factor correction, the electrical circuit power supply comprising:

• a switch-mode converter;
• a means for controlling the switch-mode converter with a first control signal in order to control currents in the switch-mode converter in order to control and regulate one of an output voltage or an output current, and to minimize noise and ripple of an input current received from a DC voltage source;
• a means for measuring one of the output voltage or the output current and comparing one of the output voltage or the output current to a first reference signal, and generating a first error signal responsive to a first difference between the first reference signal and one of the output voltage or the output current, the first error signal having a first error frequency bandwidth;
• a current measurement means for measuring the input current and generating a current measurement signal from the input current;
• a means for generating a second reference signal, and generating a second difference by subtracting the second reference signal from the current measurement signal;
• and
• a means for generating a second control signal that is proportional to the second difference, the second control signal having a control signal frequency bandwidth, the second control signal being used to control one of a gain or a magnitude of the current measurement signal in order to minimize the second difference.

An electrical circuit power supply with power factor correction, the electrical circuit power supply comprising:

• a switch-mode converter;
• a means for controlling the switch-mode converter with a first control signal in order to control currents in the switch-mode converter in order to control and regulate one of an output voltage or an output current, to minimize noise and ripple of a DC input current, the DC input current being received from a DC voltage source;
• a means for measuring one of the output voltage or the output current and comparing one of the output voltage or the output current to a first reference signal, and generating a first error signal responsive to a first difference between the first reference signal and one of the output voltage or the output current, the first error signal having a first error frequency bandwidth;
• a current measurement means for measuring the DC input current and generating a current measurement signal from the DC input current;
• a means for generating a second reference signal comprising of a DC current reference signal proportionately reduced from an input voltage by a means of a controlled voltage divider responsive to a second control signal;
• a first means for controlling a magnitude of a reduction of the input voltage and generating a second difference by subtracting the DC current reference signal from the current measurement signal;
• and
• a means for generating the second control signal that is proportional to the second difference, the second control signal having a control signal frequency bandwidth, the second control signal driving the first means for controlling the magnitude in order to minimize the second difference.