Abstract: A power supply system is disclosed that includes a first interleaved power supply, a second interleaved power supply, and a common electromagnetic interference filter. The common electromagnetic interference filter is configured to provide DC power from a DC power source to both the first interleaved power supply and the second interleaved power supply. In one example, the common electromagnetic interference filter comprises a localized filter stage configured to receive DC power from the DC power source, and a distributed filter stage configured to receive DC power from the localized filter stage. The distributed filter stage includes a first set of common mode capacitors electrically connected to and physically proximate input power lines of the first interleaved power supply, and a second set of common mode capacitors electrically connected to and physically proximate input power lines of the second interleaved power supply.

Abstract: A voltage conversion system and methods are disclosed. Voltage converter cells are controlled using interleaved phase-shift modulation signals, and convert an input electrical current at an input voltage to an output electrical current at an output voltage. Each of the voltage converter cells comprises: a transformer comprising a primary side and a secondary side, a full-bridge voltage converter connected in parallel to the primary side, and center-tapped rectifiers connected in series to the secondary side. One or more group of outputs of the voltage converters are coupled in series via the center-tapped rectifiers.

Abstract: A power conversion system is disclosed that provides multiphase power, including phase voltages for each phase of the multiphase power. The system comprises a plurality of inverters that generate PWM output voltages based on PWM control signals. A plurality of inductive components is configured to receive the PWM output voltages to generate the phase voltages. The PWM output voltages cause circulating current flows through the inductive components. A voltage controller is employed that is responsive to the phase voltages to generate voltage modulation signals corresponding to the phase voltages. A plurality of current sharing channels are respectively associated with each of the plurality of inductive components and are configured generate current sharing modulation signals in response to the circulating current flows. The PWM control signals are generated based on modulation signals obtained by combining the current sharing modulation signals and voltage modulation signals.

Abstract: A voltage conversion system and methods are disclosed. Phase-shift modulation signals are generated and interleaved to provide interleaved phase-shift modulation signals. A plurality of voltage converters are controlled using the interleaved phase-shift modulation signals to convert an input electrical current at an input voltage to an output electrical current at an output voltage.

Abstract: A voltage conversion system and methods are disclosed. Phase-shift modulation signals are generated and interleaved to provide interleaved phase-shift modulation signals. A plurality of voltage converters are controlled using the interleaved phase-shift modulation signals to convert an input electrical current at an input voltage to an output electrical current at an output voltage.

Abstract: A system is disclosed that facilitates construction project bidding over a computer network. In one aspect, a construction project supervisor system may verify one or more aspects of bidder information before bidding. A bidder may submit payment information, an electronic mail address, and a telephone number to be verified. Verification may include utilizing the payment information to process a payment, and/or sending a verification code to the electronic mail address and/or telephone number. In one embodiment, the issuance of a bid bond associated with the prospective bid may be required to complete the verification process.

Abstract: A system is disclosed that facilitates construction project bidding, document distribution, and project management over a computer network. The system enables a project supervisor to efficiently transmit new project information and associated construction project files to one or more planroom provider systems. Each planroom provider system may make project information and associated construction project files available for transfer and viewing by one or more potential bidders connected to the planroom provider system over a public or private network. The planroom provider system(s) may provide a reference or link back to the project supervisor system to enable the potential bidder to bid on the construction project once the project information and project files have been reviewed.

Abstract: A system is disclosed that facilitates construction project bidding over a computer network. In one aspect, a construction project supervisor system may verify one or more aspects of bidder information before bidding. A bidder may submit payment information, an electronic mail address, and a telephone number to be verified. Verification may include utilizing the payment information to process a payment, and/or sending a verification code to the electronic mail address and/or telephone number. In one embodiment, the issuance of a bid bond associated with the prospective bid may be required to complete the verification process.