Xiaoyu Xi
48Patents
11h-index
19Co-inventors
72Inventor score
Filing activity: Jan 9, 1998 → Dec 5, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6246221A | PMOS low drop-out voltage regulator using non-inverting variable gain stage | Physics | 135 | Expired |
| US5982309A | Parallel-to-serial CMOS data converter with a selectable bit width mode D flip-flop M matrix | Electricity | 67 | Expired |
| US6465994B1 | Low dropout voltage regulator with variable bandwidth based on load current | Physics | 63 | Expired |
| US6806690B2 | Ultra-low quiescent current low dropout (LDO) voltage regulator with dynamic bias and bandwidth | Physics | 40 | Expired |
| US6677735B2 | Low drop-out voltage regulator having split power device | Physics | 39 | Expired |
| US6541946B1 | Low dropout voltage regulator with improved power supply rejection ratio | Physics | 35 | Expired |
| US6600299B2 | Miller compensated NMOS low drop-out voltage regulator using variable gain stage | Physics | 33 | Expired |
| US6617833B1 | Self-initialized soft start for Miller compensated regulators | Physics | 27 | Expired |
| US6836148B2 | Versatile high voltage outputs using low voltage transistors | Electricity | 26 | Expired |
| US8717002B2 | Constant on-time converter and control method thereof | Electricity | 25 | Active |
| US8891258B2 | Switch mode power supply and control method thereof | Emerging Cross-Sectional Technologies | 16 | Active |
| US7151361B2 | Current sensing circuitry for DC-DC converters | Electricity | 11 | Expired |
| US6989708B2 | Low voltage low power bandgap circuit | Physics | 8 | Expired |
| US6970339B2 | Current limit protection scheme for PWM buck converter with synchronous rectifier | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8138734B2 | Accurate current limit for peak current mode DC-DC converter | Electricity | 7 | Active |
| US6995587B2 | Low voltage low power bandgap circuit | Physics | 7 | Expired |
| US9774255B2 | Synchronous buck DC-DC converter and method thereof | Emerging Cross-Sectional Technologies | 6 | Active |
| US10992231B1 | Buck-boost converter and control method | Electricity | 6 | Active |
| US8686703B2 | Switching power supply with fixed off time mode and control method thereof | Electricity | 6 | Active |
| US10476387B1 | Switching frequency control apparatus and control method thereof | Electricity | 5 | Active |
| US8928300B2 | Control circuits for switching power converters and associated methods | Electricity | 5 | Active |
| US6300831A | Compensating a Gm-boosted folded-cascode amplifier | Electricity | 5 | Expired |
| US10418907B1 | Control circuit and method for switching power converters | Electricity | 5 | Active |
| US7355375B2 | Dynamic bias circuit for use with a stacked device arrangement | Physics | 4 | Active |
| US7737673B2 | Controlling a voltage regulator | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.