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Class Information
Number: 330/251
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including class d amplifier
Description: Subject matter including an amplifier which utilizes switching-mode techniques.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456685 |
Class D audio amplifier with PWM and feedback |
Nov. 25, 2008 |
| 7456686 |
Class AD audio amplifier |
Nov. 25, 2008 |
| 7449947 |
Reduction of voltage spikes in switching half-bridge stages |
Nov. 11, 2008 |
| 7449948 |
Amplifier |
Nov. 11, 2008 |
| 7446603 |
Differential input Class D amplifier |
Nov. 4, 2008 |
| RE40550 |
Method and device for improved class BD amplification having single-terminal alternating-rail dual-sampling topology |
Oct. 28, 2008 |
| 7439801 |
Amplifier circuit with multiple power supplies |
Oct. 21, 2008 |
| 7436256 |
Systems and methods for maintaining minimum pulse width during shutdown |
Oct. 14, 2008 |
| 7436255 |
Power supply feed forward analog input filter component mismatch correction |
Oct. 14, 2008 |
| 7429890 |
PWM digital amplifier with high-order loop filter |
Sep. 30, 2008 |
| 7427893 |
Circuit and method for controlling the power mode a class-D amplifier |
Sep. 23, 2008 |
| 7425864 |
Recovery from clipping events in a class D amplifier |
Sep. 16, 2008 |
| 7417503 |
Method for high efficiency audio amplifier |
Aug. 26, 2008 |
| 7417504 |
Startup and shutdown click noise elimination for class D amplifier |
Aug. 26, 2008 |
| 7417497 |
PWM modulator and class-D amplifier having the same |
Aug. 26, 2008 |
| 7414471 |
Common-mode technique for a digital I/P class D loop |
Aug. 19, 2008 |
| 7408414 |
Distributed class G type amplifier switching method |
Aug. 5, 2008 |
| 7405615 |
Method of impulse acreage modulation digital power processing and its device |
Jul. 29, 2008 |
| 7403072 |
Integrated circuit devices having a control circuit for biasing an amplifier output stage and methods of operating the same |
Jul. 22, 2008 |
| 7400191 |
Switching power amplifier |
Jul. 15, 2008 |
| 7400194 |
Method of amplifying a digital signal and device therefor |
Jul. 15, 2008 |
| 7394315 |
Gate driver for Class D audio amplifier with adaptive dV/dt control |
Jul. 1, 2008 |
| 7394314 |
Class-D amplifier with noise-immunity feedback |
Jul. 1, 2008 |
| 7391258 |
Self-oscillating power circuit |
Jun. 24, 2008 |
| 7388426 |
Control circuit and method for a switching amplifier |
Jun. 17, 2008 |
| 7388431 |
Switching amplifier and control method thereof |
Jun. 17, 2008 |
| 7388425 |
PWM digital amplifier with high-order loop filter |
Jun. 17, 2008 |
| 7385444 |
Class D amplifier |
Jun. 10, 2008 |
| 7382188 |
Circuit for reducing distortion of class D amplifier |
Jun. 3, 2008 |
| 7378903 |
System and method for minimizing DC offset in outputs of audio power amplifiers |
May. 27, 2008 |
| 7372333 |
Monolithic supply-modulated RF power amplifier and DC-DC power converter IC |
May. 13, 2008 |
| 7372324 |
Digital amplifier |
May. 13, 2008 |
| 7368986 |
Power amplifier with low power distortion at output |
May. 6, 2008 |
| 7362254 |
Systems and methods for minimizing delay in a control path |
Apr. 22, 2008 |
| 7362180 |
Protection circuit of digital amplifier |
Apr. 22, 2008 |
| 7362082 |
Switch mode power supply with output voltage equalizer |
Apr. 22, 2008 |
| 7355472 |
Method and device for correcting signal distortions in an amplifier device |
Apr. 8, 2008 |
| 7353007 |
Digital transmission circuit and method providing selectable power consumption via multiple weighted drive slices |
Apr. 1, 2008 |
| 7348840 |
Feedback controller for PWM amplifier |
Mar. 25, 2008 |
| 7345545 |
Enhancement mode transceiver and switched gain amplifier integrated circuit |
Mar. 18, 2008 |
| 7345540 |
Amplifier circuit having a compensating amplifier unit for improving loop gain and linearity |
Mar. 18, 2008 |
| 7345539 |
Broadband microwave amplifier |
Mar. 18, 2008 |
| 7345533 |
PWM digital amplifier with high-order loop filter |
Mar. 18, 2008 |
| 7345532 |
PWM digital amplifier with high-order loop filter |
Mar. 18, 2008 |
| 7342447 |
Systems and methods for driving an output transistor |
Mar. 11, 2008 |
| 7342448 |
Power output stage |
Mar. 11, 2008 |
| 7339425 |
Class-D audio amplifier with half-swing pulse-width-modulation |
Mar. 4, 2008 |
| 7339427 |
Analogue power control in a saturated amplifier |
Mar. 4, 2008 |
| 7332962 |
Filterless class D power amplifier |
Feb. 19, 2008 |
| 7327187 |
Method, circuit and power amplifier for detecting a fault, and method of protecting a circuit in a power amplifier from a fault occurrence |
Feb. 5, 2008 |
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