A souce code for a current to voltage converter used with photodiodes.
標簽： photodiodes converter current voltage
上傳時間： 2017-04-27
上傳用戶：陽光少年2016
數字控制的交流調速系統所選用的微處理器、功率器件及產生PWM波的方法是影響交流調速系統性能好壞的直接因素。在介紹了正弦脈寬調制(SPWM)技術的基礎上，設計了一種以8098單片機作為控制器，以智能功率模塊IPM為開關器件的變頻調速系統。通過軟件編程，產生正弦脈沖寬度調制波形來控制絕緣柵雙極晶體管的導通和關斷，從而達到控制異步電動機轉速的目的。實驗結果表明，該系統可調頻率調電壓，穩定度高，調速范圍寬，具有較強的實用價值 Abstract: AC variable speed with digital control systems used microprocessors， power devices and generate PWM wave is the direct factors of affecting the performance AC speed regulation system. On the basis of introducing the sinusoidal pulse width modulation (SPWM) technology，this paper designed variable speed system which used 8098 as a controller， intelligent power module IPM as switching device. Through software programming， resulting in sinusoidal pulse width modulation waveform to control the insulated gate bipolar transistor turn on and off， so as to achieve the purpose of speed control of induction motors. Experimental results show that the system can adjust frequency modulation voltage， high stability， wide speed range， has a strong practical value.
上傳時間： 2013-11-14
上傳用戶：ynwbosss
This directory contains example ADSPBF535 code, written in assembly, that changes the frequency and voltage using the push button switches on the board.
標簽： directory frequency contains assembly
上傳時間： 2014-01-03
上傳用戶：evil
·詳細說明：包含了從MPEG4的視頻解碼到H.264的視頻編碼部分的源代碼，不包括音頻部分的編解碼- Contained has decoded from the MPEG4 video frequency to the H.264 video frequency code partial sources code, partial did not arrange including the aud
上傳時間： 2013-04-24
上傳用戶：liaofamous
·詳細說明：MPEG4流媒體的視頻傳輸和運程播放代碼，VC平臺-MPEG4 flows the media the video frequency to transmit and to haul the broadcast code, the VC platform 相關函數/類: CreateEvent CloseHandle ResetEvent WaitForSingleObject
上傳時間： 2013-07-28
上傳用戶：84425894
Avalanche photodiodes (APDs) are widely utilized in laserbased fiberoptic systems to convert optical data intoelectrical form. The APD is usually packaged with a signalconditioning amplifier in a small module. An APD receivermodule and attendant circuitry appears in Figure 1. TheAPD module (figure right) contains the APD and a transimpedance(e.g., current-to-voltage) amplifier. An opticalport permits interfacing fiberoptic cable to the APD’sphotosensitive portion. The module’s compact constructionfacilitates a direct, low loss connection between theAPD and the amplifier, necessary because of the extremelyhigh speed data rates involved
上傳時間： 2013-10-25
上傳用戶：brain kung
The Virtex-4 features, such as the programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, PCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the PCI-X target initial latency specification. PCI-X Protocol Addendum tothe PCI Local Bus Specification Revision 2.0a ([Ref 6]) dictates that when a target signals adata transfer, "the target must do so within 16 clocks of the assertion of FRAME#." PCItermination transactions, such as Split Response/Complete, are commonly used to meet thelatency specifications. This method adds complexity to the design, as well as additional systemlatency. Another solution is to increase the ratio of the memory frequency to the PCI-X busfrequency. However, this solution increases the required power and clock resource usage.
上傳時間： 2013-11-24
上傳用戶：18707733937
PWM 變頻調速FFT分析 use the FFT tool of Powergui to display the frequency spectrum of voltage and current waveforms.
標簽： FFT the frequency Powergui
上傳時間： 2016-07-14
上傳用戶：lanjisu111
An assembly to strobe the LEDsvia Port D. The strobe rate is to be set by adjusting the voltage drop over a potentiometer that is sampled by an ADC
上傳時間： 2015-03-21
上傳用戶：13681659100
Frequency Scale Conversion From f To f Scale frq2mel mel2frq mel The mel scale is based on the human perception of sinewave pitch. frq2erb erb2frq erb The erb scale is based on the equivalent rectangular bandwidths of the human ear. frq2midi midi2frq midi The midi standard specifies a numbering of semitones with middle C being 60. They can use the normal equal tempered scale or else the pythagorean scale of just intonation. They will in addition output note names in a character format.
標簽： Scale Conversion Frequency mel
上傳時間： 2015-06-07
上傳用戶：
