In wireless applications, phase-locked-loop frequency synthesizers require very good phase noise performance in order to obtain a good signal-t-noise ratio for the desired signals even in the presence of very large nearby unwanted signals. Inside frequency synthesizers, thermal noise generated by th.....
[更多]
III-nitride compound semiconductors have the merits of wide band gap, high breakdown field, and large thermal conductivity, which results in well designed AlGaN/GaN heterojunction field-effect transistors. This transistor is capable of high temperature operation, suitable for high temperature integr.....
[更多]
The present invention relates to the construction of hyperbranched polytriazoles and linear and hyperbranched poly(aroyltriazole)s by Huisgen 1,3-dipolar polycycloaddition. The polymers were prepared by A2 + B3 methodology to avoid self-polymerization during monomer preparation and storage. A new cl.....
[更多]
Electrorheological(ER) fluids are of high interest because potentially they can provide simple, quiet, and fast interfaces between electrical controls and mechanical systems. However, a problem with ER fluids to date is that the yield strength is too low for many practical applications. The main dra.....
[更多]
The state-of-the-art voltage regulator often experiences fast and large change in load as the powerful digital processor is widely being used. The voltage regulator has to have fast load transient response to maintain integrity of supply voltage. Moreover, it is desirable to have high power conversi.....
[更多]
|< <- | [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] | -> >| |