Abstract: Embodiments of a power converter are disclosed. In an embodiment, the power converter comprises a power factor correction (PFC) stage circuit, an emulation circuit and a controller. The PFC stage circuit is configured to produce an output signal on an output terminal. The PFC stage circuit includes an inductor coupled between a rectifier and the output terminal and a switch coupled to the inductor. The emulation circuit is connected to the PFC stage circuit to generate an emulated current that corresponds to current through the inductor of the PFC stage circuit. The emulated current is generated based on a voltage signal at a node between the inductor and the output terminal and a sensed current at a sense resistor connected to the rectifier. The controller is connected to the emulation circuit to receive the emulated current and generate a control signal for the switch of the PFC stage circuit based on the emulated current.

Abstract: Various embodiments relate to a converter controller configured to control a resonant converter, including: an integrator configured to receive a current measurement signal from a current measurement circuit in the resonant converter and to produce a capacitor voltage signal indicative of the voltage at the resonant capacitor; a control logic configured to produce a high side driver signal, a low side driver signal, a symmetry error signal based upon the capacitor voltage signal and the current measurement signal; and a symmetry controller configured to produce a symmetry correction signal based upon the symmetry error signal, wherein the symmetry error signal is input into the integrator to control the duty cycle of the high side driver signal and the low side driver signal, wherein the high side driver signal and the low side driver signal control the operation of the resonant converter.

Abstract: Various embodiments relate to a converter controller configured to control a resonant converter, including: an integrator configured to receive a current measurement signal from a current measurement circuit in the resonant converter and to produce a capacitor voltage signal indicative of the voltage at the resonant capacitor; a control logic configured to produce a high side driver signal, a low side driver signal, a symmetry error signal based upon the capacitor voltage signal and the current measurement signal; and a symmetry controller configured to produce a symmetry correction signal based upon the symmetry error signal, wherein the symmetry error signal is input into the integrator to control the duty cycle of the high side driver signal and the low side driver signal, wherein the high side driver signal and the low side driver signal control the operation of the resonant converter.

Abstract: Embodiments of a power converter are disclosed. In an embodiment, the power converter comprises a power factor correction (PFC) stage circuit, an emulation circuit and a controller. The PFC stage circuit is configured to produce an output signal on an output terminal. The PFC stage circuit includes an inductor coupled between a rectifier and the output terminal and a switch coupled to the inductor. The emulation circuit is connected to the PFC stage circuit to generate an emulated current that corresponds to current through the inductor of the PFC stage circuit. The emulated current is generated based on a voltage signal at a node between the inductor and the output terminal and a sensed current at a sense resistor connected to the rectifier. The controller is connected to the emulation circuit to receive the emulated current and generate a control signal for the switch of the PFC stage circuit based on the emulated current.

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; a dual output controller including a first error signal input, a second error signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the second error signal is a function of

Abstract: Various embodiments relate to a circuit for power factor correction (“PFC”), the circuit including: a mains filter and rectifier configured to generate an input voltage for power factor correction and transmit the input voltage to a PFC controller and a load block; a voltage regulator configured to regulate the input voltage and output a control signal to an adder; a mains voltage sensor configured to sense a mains voltage and output a sensed mains voltage; a bandpass filter configured to filter out frequencies in a range of resonance frequencies of the sensed mains voltage and output an additional signal; and an adder configured to add the additional signal to the control signal and output a desired input current to the PFC controller.

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; and a dual output controller including a first error signal input, a second error signal input, a delta power signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the seco

Abstract: Various embodiments relate to a circuit for power factor correction (“PFC”), the circuit including: a mains filter and rectifier configured to generate an input voltage for power factor correction and transmit the input voltage to a PFC controller and a load block; a voltage regulator configured to regulate the input voltage and output a control signal to an adder; a mains voltage sensor configured to sense a mains voltage and output a sensed mains voltage; a bandpass filter configured to filter out frequencies in a range of resonance frequencies of the sensed mains voltage and output an additional signal; and an adder configured to add the additional signal to the control signal and output a desired input current to the PFC controller.

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; a dual output controller including a first error signal input, a second error signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the second error signal is a function of

Abstract: A switched mode power supply including an alternating current power supply configured to output a voltage, a sense resistor configured to sense a voltage output from the power supply, a current sense processor configured to sense a current level through the sense resistor, sense disturbances in the sensed voltage, and reconstruct the sensed voltage to eliminate the disturbances.

Abstract: A power factor corrector circuit and a method of operating the power factor corrector circuit include a power factor corrector operable in a conduction mode within an operating frequency between a minimum value and a maximum value. A measured variable k1 can define a relation between a predetermined level set for a current ripple of a peak current Ipeakh minus a peak current Ipeakl in combination with a variable a that sets a ratio between a primary and secondary stroke interval and a resulting time period.

Abstract: A power factor corrector circuit and a method of operating the power factor corrector circuit include a power factor corrector operable in a conduction mode within an operating frequency between a minimum value and a maximum value. A measured variable k1 can define a relation between a predetermined level set for a current ripple of a peak current Ipeakh minus a peak current Ipeakl in combination with a variable a that sets a ratio between a primary and secondary stroke interval and a resulting time period.

Abstract: A switched mode power supply including an alternating current power supply configured to output a voltage, a sense resistor configured to sense a voltage output from the power supply, a current sense processor configured to sense a current level through the sense resistor, sense disturbances in the sensed voltage, and reconstruct the sensed voltage to eliminate the disturbances.

Abstract: A communication circuit for communication over a voltage isolation barrier, the communication circuit including a pulse driven transformer coupled to a current sensing input, wherein information is transferred in the current domain and wherein during the information transfer, the receiver input is made low ohmic, a current pulse transformer including a primary winding, a core, and a secondary winding, a resistor in parallel with the secondary winding, a current sensor having a low ohmic input to receive a pulse from the secondary winding, and a signal processing unit to extract information from the received pulse.

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; a dual output controller including a first error signal input, a second error signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the second error signal is a function of

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; and a dual output controller including a first error signal input, a second error signal input, a delta power signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the seco

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; and a dual output controller including a first error signal input, a second error signal input, a delta power signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the seco

Abstract: A power factor corrector circuit and a method of operating the power factor corrector circuit can include a power factor corrector, wherein two or more input variables can be defined for the power factor corrector including a peak current and an input current. A processor can select corresponding variables in the power factor corrector with respect to the two or more input variables defined for the power factor corrector, and the corresponding variables can include a peak current and an input current. The corresponding variables in the power factor corrector can adapt to the two or more input variables to allow the power factor corrector to operate in a conduction mode.

Abstract: Embodiments of a method and a device are disclosed. A circuit can include a power factor corrector, wherein two or more desired input variables can be defined for the power factor corrector, and a processor that communicates with the power factor corrector, and which selects variables in the power factor corrector with respect to the two or more desired input variables defined for the power factor corrector. The two or more desired input variables can include a switching frequency and an input current and the variables can include an amount of operation in a conduction mode and at least one of a primary peak current and a primary conduction interval. The variables in the power factor corrector can be adapted to the two or more desired input variables to allow the power factor corrector to operate in an operating mode that can include the conduction mode.

Abstract: A power converter including: a dual output resonant converter including a first output, a second output, a common mode control input, and a differential mode control input, wherein a voltage/current at the first output and a voltage/current at the second output are controlled in response to a common mode control signal received at the common mode control input and a differential mode control signal received at the differential mode control input; and a dual output controller including a first error signal input, a second error signal input, a common mode control output, and a differential mode control output, wherein the dual output controller is configured to generate the common mode control signal and the differential mode control signal in response to a first error signal received at the first error signal input and a second error signal received at the second error signal input, wherein the first error signal is a function of the voltage/current at the first output and the second error signal is a functio