TW200743299A - Compensated gain control - Google Patents
Compensated gain controlInfo
- Publication number
- TW200743299A TW200743299A TW095116210A TW95116210A TW200743299A TW 200743299 A TW200743299 A TW 200743299A TW 095116210 A TW095116210 A TW 095116210A TW 95116210 A TW95116210 A TW 95116210A TW 200743299 A TW200743299 A TW 200743299A
- Authority
- TW
- Taiwan
- Prior art keywords
- comparator
- voltage
- compensated
- gain control
- class
- Prior art date
Links
Landscapes
- Amplifiers (AREA)
Abstract
A compensated gain control circuit, applicable to a class-D audio power amplifier, comprises a voltage divider, a first comparator, a ramp signal generator, and a second comparator. The duty cycle of a PWM signal can be modulated through the voltage divider, the first comparator, the ramp signal generator, the second comparator according to the voltage difference between the high voltage level and the low voltage level of a voltage source. The loss of power gain can be compensated by adjusting the duty cycle. As a result, the class-D audio power amplifier is able to maintain a fixed output power or power gain for different voltage sources.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095116210A TW200743299A (en) | 2006-05-08 | 2006-05-08 | Compensated gain control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095116210A TW200743299A (en) | 2006-05-08 | 2006-05-08 | Compensated gain control |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200743299A true TW200743299A (en) | 2007-11-16 |
Family
ID=57914278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095116210A TW200743299A (en) | 2006-05-08 | 2006-05-08 | Compensated gain control |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200743299A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104365018A (en) * | 2012-05-24 | 2015-02-18 | 慕尼黑应用技术大学 | Switched amplifier for variable supply voltage |
-
2006
- 2006-05-08 TW TW095116210A patent/TW200743299A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104365018A (en) * | 2012-05-24 | 2015-02-18 | 慕尼黑应用技术大学 | Switched amplifier for variable supply voltage |
CN104365018B (en) * | 2012-05-24 | 2017-08-04 | 慕尼黑应用技术大学 | Switching amplifier for varying supply voltage |
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