IP Library › Granted Patent US 7,961,043
Granted Patent B2
US 7,961,043 · App. 12/160,379 · Granted Jun 14, 2011

Single-ended amplifier

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Quick Facts
Patent No.
US 7,961,043
App. No.
12/160,379
Granted
Jun 14, 2011
Kind
B2
Abstract

In an amplifier arrangement comprising an amplifier (A O ) having an output, a first feedback (R fb ) between the output and an input side of the amplifier, a load (R L ) having a first terminal coupled to the output and a second terminal, and a DC-blocking capacitance (C DC ) between the second terminal of the load and a reference terminal, a second feedback (C x , R x ) is present between the second terminal of the load and the input side of the amplifier.

Claims (27)

1. An amplifier arrangement comprising:

an amplifier having an output,

a first feedback between the output and a first input of an input side of the amplifier,

a load having a first terminal coupled to the output, and a second terminal,

a DC-blocking capacitance between the second terminal of the load and a reference terminal; and

a second feedback between the second terminal of the load and a second input of the input side of the amplifier;

wherein the DC-blocking capacitance comprises a first DC-blocking capacitor between the second terminal of the load and a power supply terminal and a second DC-blocking capacitor between the second terminal of the load and ground.

2. A multi-channel amplifier unit, comprising a plurality of amplifier arrangements as claimed in claim 1 , wherein the amplifier arrangements share a common DC-blocking capacitance.

3. A multi-channel amplifier unit as claimed in claim 2 , wherein the DC-blocking capacitance comprises a first DC-blocking capacitor between the second terminal of the load and a power supply terminal and a second DC-blocking capacitor between the second terminal of the load and ground.

4. A multi-channel amplifier unit, comprising a plurality of amplifier arrangements as claimed in claim 1 , wherein the amplifier arrangements share a common second feedback.

5. A multi-channel amplifier unit comprising:

a plurality of amplifier arrangements, having:

an amplifier having an output,

a first feedback between the output and a first input of an input side of the amplifier,

a load having a first terminal coupled to the output, and a second terminal,

a DC-blocking capacitance between the second terminal of the load and a reference terminal; and

a second feedback between the second terminal of the load and a second input of the input side of the amplifier;

wherein the amplifier arrangements share a common DC-blocking capacitance.

6. A multi-channel amplifier unit as claimed in claim 5 , wherein the DC-blocking capacitance comprises a first DC-blocking capacitor between the second terminal of the load and a power supply terminal and a second DC-blocking capacitor between the second terminal of the load and ground.

7. A multi-channel amplifier unit comprising:

a plurality of amplifier arrangements having:

an amplifier having an output,

a first feedback between the output and a first input of an input side of the amplifier,

a load having a first terminal coupled to the output, and a second terminal,

a DC-blocking capacitance between the second terminal of the load and a reference terminal; and

a second feedback between the second terminal of the load and a second input of the input side of the amplifier;

wherein the amplifier arrangements share a common second feedback.

Assignments (10)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12298143 PREVIOUSLY RECORDED ON REEL 042985 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded Oct 22, 2019
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 051029/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12298143 PREVIOUSLY RECORDED ON REEL 042762 FRAME 0145. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded Oct 22, 2019
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 051145/0184 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12298143 PREVIOUSLY RECORDED ON REEL 038017 FRAME 0058. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded Oct 22, 2019
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 051030/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12298143 PREVIOUSLY RECORDED ON REEL 039361 FRAME 0212. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded Oct 22, 2019
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 051029/0387 →
RELEASE OF SECURITY INTEREST Recorded Sep 10, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 050745/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12681366 PREVIOUSLY RECORDED ON REEL 038017 FRAME 0058. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded May 9, 2017
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 042985/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12681366 PREVIOUSLY RECORDED ON REEL 039361 FRAME 0212. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded May 9, 2017
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 042762/0145 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 12092129 PREVIOUSLY RECORDED ON REEL 038017 FRAME 0058. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT SUPPLEMENT. Recorded Jul 14, 2016
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 039361/0212 →
SECURITY AGREEMENT SUPPLEMENT Recorded Mar 7, 2016
From: NXP B.V.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 038017/0058 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2008
From: BERKHOUT, MARCO
To: NXP B.V.
Reel/Frame 021214/0598 →