SYSTEMS, METHODS, AND APPARATUS FOR A HIGH POWER FACTOR SINGLE PHASE RECTIFIER

• US 20150263539A1
• Filed: 05/29/2015
• Published: 09/17/2015
• Est. Priority Date: 11/17/2011
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Irish, Linda S.
• Application Number:
  US14/725,708
• Publication Number:
  US 20150263539A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02M 1/4208 Arrangements for improving power factor of AC input
• CPC Class Codes: H02M 1/4266 using passive elements
• CPC Class Codes: H02M 7/05 Capacitor coupled rectifiers
• CPC Class Codes: H02M 7/06 using discharge tubes without control electrode or semiconductor devices without control electrode
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

Systems, methods and apparatus are disclosed for broadband AC to DC conversion. In one aspect, a power conversion apparatus for providing direct current (DC) based at least in part on an alternating current is provided. The power conversion apparatus includes a first rectifier circuit configured to rectify the alternating current to a first direct current. The power conversion apparatus further includes an averaging circuit configured to average the first direct current received from the first rectifier circuit and to provide a second direct current. The power conversion apparatus further includes a second rectifier circuit configured to rectify the alternating current to a third direct current. The direct current is derived from the second direct current and the third direct current.

Claims

1. An apparatus for wirelessly receiving power via a magnetic field generated by a transmitter to power or charge a load, the apparatus comprising:

a receive circuit comprising a coil, the receive circuit configured to wirelessly couple power via the magnetic field, a voltage induced in the receive circuit in response to the magnetic field generating an alternating current in the receive circuit;

a first rectifier circuit electrically coupled to the receive circuit and configured to rectify the alternating current to a first direct current;

a first filter circuit electrically coupled to the first rectifier circuit and comprising an inductor and a capacitor, the first filter circuit configured to output a second direct current based on the first direct current;

a second rectifier circuit electrically coupled to the receive circuit configured to rectify the alternating current to a third direct current; and

a second filter circuit electrically coupled to outputs of the first filter circuit and the second rectifier circuit, the second filter circuit comprising an inductor and a capacitor and configured to output a fourth direct current based on the second direct current and the third direct current, the fourth direct current provided to power or charge the load.