Integrated booster amplifier

• US 7,307,474 B2
• Filed: 12/21/2005
• Issued: 12/11/2007
• Est. Priority Date: 12/21/2004
• Status: Expired due to Fees

• Current Assignee: Nuforce, Inc. (Optoma Corporation)
• Original Assignee: Nphysics Incorporated
• Inventors: Nguyen, Tranh T.
• Primary Examiner(s): NGUYEN, KHANH V
• Application Number:
  US11/316,469
• Publication Number:
  US 20060132234A1
• Time in Patent Office: 720 Days
• Field of Search: 330/146, 330/207.A, 330/251, 363/41
• US Class Current: 330/207.00A
• CPC Class Codes: H03F 1/52 Circuit arrangements for protecting such amplifiers monitoring arrangements G01R31/28; increasing reliability in communication systems, e.g. using redundancy H04B1/74
• CPC Class Codes: H03F 3/217 Class D power amplifiers; Switching amplifiers
• CPC Class Codes: H03F 3/2173 of the bridge type

Abstract

An amplifier is provided. The amplifier comprises an H-bridge with two halves. A capacitor and two inductors are coupled to the H-bridge. Each inductor, a half of the H-bridge, and the capacitor are configured as a boost converter.

Claims

1. An amplifier, comprising:

an H-bridge that comprises a first switch, a second switch, a third switch, and a fourth switch;

a capacitor coupled to the H-bridge;

a first inductor coupled to the H-bridge, wherein the first inductor, the first and second switches, and the capacitor are configured as a first boost converter;

a second inductor coupled to the H-Bridge, wherein the second inductor, the third and fourth switches, and the capacitor are configured as a second boost converter;

a first set of delta-configured inductors coupled to the first and second switches; and

a second set of delta-configured inductors coupled to the first set of delta-coupled inductors and the third and fourth switches.

2. The amplifier of claim 1, wherein the H-bridge further comprises:

a first magnetic coupling that couples the first and second set of delta-configured inductors; and

a second magnetic coupling that couples the first and second set of delta-configured inductors.

3. An amplifier, comprising:

a half H-bridge that comprises a first switch, a second switch, and a set of delta-configured inductors, the set of delta-configured inductors being coupled to the first and second switches;

a capacitor coupled to the half H-bridge; and

an inductor coupled to the half H-bridge, the inductor, the first and second switches, and the capacitor being configured as a boost converter.