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US 8,134,399 B2Granted
Signal transformer
AssigneeGreen Solution Technology Co., Ltd.
InventorsJi-Ming Chen, Huan-Wen Chien
Life of this patent
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Abstract
A fast current generating element in a current generating unit, used by the present invention, provides a large current for accelerating the switching of transistor switches when the transistor switches are switched. The fast current generating element includes a capacitor to provide a large differential current when a voltage level transiently changes during the switching of the transistor switches. Therefore, a transient response time of a signal transformer is shortened.
Claims11
A signal transformer, used to transform a level of signal, the signal transformer comprising:
- two input elements, each of the input elements comprising:
- an input unit coupled to a first common level and a second common level and receiving an input signal so as to generate a current generating signal and a trigger signal, wherein a level of the input signal is between the first common level and the second common level;
- an output trigger unit coupled to a third common level and the input unit and generating an output trigger signal according to the trigger signal;
- and
- a current generating unit coupled to the input unit and the output trigger unit and comprising a fast current generating element, the fast current generating element generating a current pulse signal according to the current generating signal so as to shorten a transient response time of the output trigger signal generated by the output trigger unit;
- and
- an output unit coupled to the third common level and a fourth common level and generating two output signals with opposite phases according to the two output trigger signals of the two output trigger units, wherein levels of the two output signals are between the third common level and the fourth common level.
4 more elements
Dependencies are inferred from the claim text.