Abstract
Cellular phone power amplifier transistors have to withstand extreme voltages, temperatures and currents. Requirements on IC and packaging technology are relaxed by using over-voltage and over-temperature protection. To avoid breakdown, protection circuits are used that detect the collector peak voltage and die temperature to limit the output power once a threshold level is crossed. For a supply voltage of 5 V and a nominal output power of 2W, no breakdown is observed for a VSWR of 10 over all phases. For a VSWR of 4 and worst case mismatch phase the maximum die temperature is reduced from 143degC to 112degC when the output power is adaptively reduced from 32.1 dBm to 27.7 dBm
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Bipolar/BiCMOS Circuits and Technology Meeting 2006 (BCTM 2006) |
| Place of Publication | Piscataway |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 275-278 |
| ISBN (Print) | 1-4244-0459-2 |
| DOIs | |
| Publication status | Published - 2006 |
| Event | 2006 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM 2006), October 8-10, 2006, Maastricht, The Netherlands - Maastricht, Netherlands Duration: 8 Oct 2006 → 10 Oct 2006 |
Conference
| Conference | 2006 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM 2006), October 8-10, 2006, Maastricht, The Netherlands |
|---|---|
| Abbreviated title | BCTM 2006 |
| Country/Territory | Netherlands |
| City | Maastricht |
| Period | 8/10/06 → 10/10/06 |
Fingerprint
Dive into the research topics of 'Ruggedness improvement by protection'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver