| Autor: |
Dong-Bin Cheon, Sang-O Lee, Byeong-Ha Park, Beom-Kyu Ko, Jin-Su Ko, Jeong-Keun Kim |
| Rok vydání: |
2003 |
| Předmět: |
|
| Zdroj: |
AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360). |
| DOI: |
10.1109/apasic.1999.824033 |
| Popis: |
It is demonstrated that the gain of an amplifier with a large transistor cannot be controlled by bias current but can be controlled effectively by varying the effective emitter inductance. A simple method to control the gain of a driver amplifier is suggested and implemented. The measured gain variation is not less than 6 dB. However, that measured by the conventional method is only 0.5 dB. Using this gain control scheme, a class AB driver amplifier is designed for a PCS handheld phone. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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