Temat: PWM (pulse width modulation) amplifier - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Development and tests of PWM amplifier for driving the piezoelectric elements
Autorzy:: Matiulko, J.
Poźniak, T.
Przygoda, K.
Grecki, M.
Powiązania:: https://bibliotekanauki.pl/articles/397949.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:: wzmacniacz PWM (modulacja szerokości impulsu)
piezoelektryczne elementy
PWM (pulse width modulation) amplifier
piezoelectric elements
Opis:: The paper describes the design and research work carried out to prepare the prototype of pulse amplifier. The work was aimed to describe main operational parameters of PWM amplifiers enabling using them to control the piezoelectric actuators used for active compensation of Lorentz force detuning of superconducting cavities.
Źródło:: International Journal of Microelectronics and Computer Science; 2010, 1, 1; 69-72
2080-8755
2353-9607
Pojawia się w:: International Journal of Microelectronics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Design of a Class-D Audio Amplifier With Analog Volume Control for Mobile Applications
Autorzy:: El Khadiri, K.
Qjidaa, H.
Powiązania:: https://bibliotekanauki.pl/articles/226924.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: class D amplifier
analog volume control
pulse width modulation (PWM)
ramp generator
Opis:: A class-D audio amplifier with analog volume control (AVC) for portable applications is proposed in this paper. The proposed class-D consist of two sections. First section is an analog volume control which consists of an integrator, an analog MUX and a programmable gain amplifier (PGA). The AVC is implemented with three analog inputs (Audio, Voice, FM). Second section is a driver which consists of a ramp generator, a comparator, a level shifter and a gate driver. The driver is designed to obtain a low distortion and a high efficiency. Designed with 0.18 um 1P6M CMOS technology, the class-D audio amplifier with AVC achieves a total root-mean-square (RMS) output power of 0.5W, a total harmonic distortion plus noise (THD+N) at the 8-Ω load less than 0.06% and a power efficiency of 90% with a total area of 1.74 mm2.
Źródło:: International Journal of Electronics and Telecommunications; 2016, 62, 2; 187-198
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

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