Phoenixtec Power Co., Ltd.
13Patents
3Active
13Granted
36Portfolio score
Filing activity: Dec 21, 1998 → Apr 23, 2008 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6914418B2 | Multi-mode renewable power converter system | Emerging Cross-Sectional Technologies | 334 | Expired |
| US6744643B2 | Push-pull booster circuit with a pair of inductors for coupling | Electricity | 184 | Expired |
| US6803679B1 | Parallel redundant power system and method for control of the power system | Electricity | 21 | Expired |
| US7425779B2 | Parallel redundant power system and the control method for the same | Electricity | 18 | Active |
| US6094363A | Uninterruptible power supply with AC sine wave output and energy recycle function | Electricity | 13 | Expired |
| US7141892B2 | Power supply method of a line interactive UPS and the line interactive UPS | Electricity | 10 | Expired |
| US6356463B1 | High frequency, voltage feedback control mode power converter | Electricity | 3 | Expired |
| US7888819B2 | Multi-input power converter and uninterruptible power supply having the same | Electricity | 3 | Active |
| US6961250B2 | Non-isolated AC power supply device and method for controlling the same | Electricity | 2 | Expired |
| US6388900B1 | Constant-frequency active filter controlled by a peak current control mode | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6559630B2 | Method of measuring frequency of AC power | Physics | 1 | Expired |
| US6921287B2 | Exchangeable module for an electric system | Emerging Cross-Sectional Technologies | 0 | Expired |
| US7633781B2 | AC power supply and method for controlling output current thereof | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.