High power factor, voltage-doubler rectifier
Patent 5119283 Issued on June 2, 1992. Estimated Expiration Date: 
June 10, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 10, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3851182 Power circuit with high input power factor and a regulated output Low/high input voltage power supply Method and network for enhancing power factor of off-line switching circuit AC/DC converter using resonant network for high input power factor Stabilized power supply with reduced ripple factor Patent #: 4967333 InventorsApplicationNo. 712371 filed on 06/10/1991US Classes:363/37, By semiconductor rectifier and inverter323/207, Using converter363/61, For rectifying363/90, With inductive control means in the line circuit363/101, With auxiliary bucking or boosting EMF363/143110/220 Volts A.C. in, constant 110 Volts D.C. outExaminersPrimary: Sterrett, JeffreyAttorney, Agent or FirmInternational ClassH02M 005/458AbstractA voltage-doubler rectifier includes an ac fullbridge diode rectifier and a dc-to-dc converter having two output boost circuits. One of the output boost circuits is coupled between the rectifier and a dc link, and the other output boost circuit is coupled, with opposite polarity, between the rectifier and the circuit common. Two series-connected filter capacitors are also coupled between the dc link and the circuit common. In a preferred embodiment, the two output boost circuits each comprise either a series, parallel, or combination series/parallel resonant circuit and a rectifier. A switch is coupled between the junction joining one pair of diodes of the rectifier and the junction joining the two filter capacitors. For a relatively high ac line voltage, the switch is open, and the circuit operates in a low boost mode. For a relatively low ac line voltage, the switch is closed, and the circuit operates in a high boost, or voltage-doubling, mode. | |
