A 13.56 MHz pulse-width modulation active rectifier for implantable medical devices

2017 ◽  
Author(s):  
Fu-Bin Yang ◽  
Sheng-Kai Hsieh ◽  
Po-Hung Chen
Keyword(s):  
Medical Devices ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Implantable Medical Devices ◽  
Active Rectifier

scholarly journals Recovery Current Sinusoidality Distortion in the Control System of Forced Discharge of Batteries into the Mains

2020 ◽  
Vol 26 (4) ◽  
pp. 540-554
Author(s):  
S. S. Frolov ◽  
◽  
D. A. Shatilov ◽  
Keyword(s):  
Control System ◽  
Electromotive Force ◽  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Universal System ◽  
Current Function ◽  
Active Rectifier ◽  
Storage Batteries ◽  
The Relationship

The requirements for the reverse recovery current sinusoidality are high. Therefore, when developing programs for microcontrollers for a universal system of pulse-width modulation of the recovery current, it is important to have information on the dependences of the sinusoidality distortion degree on the relationship between the total electromotive force of the battery and the mains voltage, the amplitude of the recovery current, the inductance of the active rectifier coil, through which it flows, as well as between the frequencies of the network and the control PWM signal. The results of research into the development of a microcontroller modulation system for a routine forced (training or diagnostic) discharge of storage batteries into a single-phase network are presented. The sought expressions for the dependences of the sinusoidality distortion degree are obtained on the basis of the results of the spectral transformation of the regenerative current function obtained in MathCAD when the latter is formed by the control signal with single-stroke double-sided PWM-2.

The 1-Bit Instrument

2020 ◽  
Vol 1 (1) ◽  
pp. 44-74
Author(s):  
Blake Troise
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Interleaving Techniques ◽  
Sonic Environment

The 1-bit sonic environment (perhaps most famously musically employed on the ZX Spectrum) is defined by extreme limitation. Yet, belying these restrictions, there is a surprisingly expressive instrumental versatility. This article explores the theory behind the primary, idiosyncratically 1-bit techniques available to the composer-programmer, those that are essential when designing “instruments” in 1-bit environments. These techniques include pulse width modulation for timbral manipulation and means of generating virtual polyphony in software, such as the pin pulse and pulse interleaving techniques. These methodologies are considered in respect to their compositional implications and instrumental applications.

An Equivalent Circuit Model for Vertical Comb Drive MEMS Optical Scanner Controlled by Pulse Width Modulation

2012 ◽  
Vol 132 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Satoshi Maruyama ◽  
Muneki Nakada ◽  
Makoto Mita ◽  
Takuya Takahashi ◽  
Hiroyuki Fujita ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Comb Drive ◽  
Optical Scanner
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