Features: High efficiency, high reliability, low cost AC input range selected by switch 100% full load burn-in test Protections: Short circuit / Over load Fixed switching frequency at 25KHz Cooling by free air convection 1 year warranty Dimensions: 199*98*38mm (L*W*H)
標簽： Switchin Output Single SKS
上傳時間： 2013-10-30
上傳用戶：taa123456
兩輪自平衡小車
標簽： 自平衡
上傳時間： 2013-11-04
上傳用戶：lo25643
飛思卡爾電磁組官網雙軸自平衡小車
上傳時間： 2013-11-17
上傳用戶：lo25643
雙輪平衡車開發文檔(自平衡小車的開發)，雙輪平衡車開發文檔。
上傳時間： 2013-11-18
上傳用戶：ysystc699
PIC16_和PIC18_器件的高速串行自舉程序
上傳時間： 2013-10-21
上傳用戶：cjh1129
兩輪自平衡小車
標簽： 自平衡
上傳時間： 2013-11-15
上傳用戶：ghostparker
單軸雙輪自平衡車
標簽： 自平衡
上傳時間： 2014-01-05
上傳用戶：萍水相逢
傳統多模態生物特征識別方法當出現生物特征缺失時，識別性能會明顯下降。針對此問題，提出一種融合人臉、虹膜和掌紋的自適應并行結構多模態生物識別方法。該方法在設計融合策略時，考慮到所有可能的輸入缺失，構造并行結構的融合函數集，在實際應用時根據輸入狀態自適應的選擇融合策略進行識別。實驗仿真結果表明該方法既可提高識別可靠性又可實現當有生物特征缺失時的性能穩定。
上傳時間： 2013-11-02
上傳用戶：huangld
為解決電致變色器件的顏色變化受外界環境顏色控制的問題，設計了一種基于單片機的便攜式顏色自適應識別電路。與傳統顏色識別電路相比較，該電路利用數字式的顏色傳感器來獲取外界環境顏色，產生的數字顏色信號易于單片機進行處理。在電路中，下位機部分主要負責獲取電致變色器件變色參數及控制電致變色器件的顏色變化;而上位機部分主要負責把下位機獲取的電致變色器件變色參數進行電壓到顏色的曲線擬合，并通過藍牙通信把擬合曲線參數傳遞給下位機。結果表明，該電路能自動根據環境顏色提供-4~4 V范圍步進為0.1 V的電壓來驅動電致變色器件的顏色顯示，與傳統的顏色識別電路設計相比，識別的精度和速度都得到了明顯改善。 Abstract: In this paper， a portable adaptive circuit for color identification(PACCI) based on MCU was designed. Compared to the traditional color identification circuit， the PACCI adopts digital sensor to detect the color data from external environment and further generate digital color data， which can be processed easily by MCU. In PACCI， the slave is mainly responsible for detecting the color parameters of the corresponding elcreochromic device and further driving it. For the master， which is mainly responsible for the color curve fitting based on the parameters of the electrochromic device， and transmits the fitting parameters to the slave through the bluetooth device. The results show that the PACCI can provide the basis voltage range from -4V to 4V automatically based on the colors of external environment with step as 0.1V to drive the corresponding electrochromic device. Compared to the traditional color recognition circuit， the recognition accuracy and speed of PACCI have been improved significantly.
上傳時間： 2013-11-09
上傳用戶：franktu
為了有效地提升鉛酸蓄電池的使用壽命，同時實現對充電過程的監控，設計出一種用單片機控制的36 V鉛酸蓄電池充電電源。本電路采用反激式拓撲，連續電流工作模式，電源管理IC設計在電源的副邊，由ELAN公司的EM78P258N單片機模擬，是用可編程器件模擬電源管理IC，實現智能電源低成本化的一次成功嘗試，通過對單片機的軟件設計實現了充電電源的狀態顯示、充電時間控制、報警、過溫保護、過壓保護、過流保護等功能。本充電器真正的實現了鉛酸蓄電池的三段式充電過程，其最高輸出功率可達90 W，效率約85%，成本不到20元，具有很高的市場競爭力。 Abstract: In order to extend the life of lead-acid battery efficiently and supervise the charging process meanwhile， a 36V lead-acid battery charge powe supply controlled by microcontroller is designed. The charger is flyback switching power supply and works in CCM mode. A EM78P258N microcontroller made by ELAN microelectronics corporation is used as power management IC which is designed at the secondary circuit. The project is a successful attempt to low-cost intelligent power used microcontroller simulating power management IC. The charger also has the functions of the status reveal， charge time control， alarming， thermal protect， current limit and overvoltage protect by the software design. The circuit actually implements the three-step charge process， whose power is up to 90W and whose efficiency can get 85%. The net cost of this charger is less than 20 RMB， so that the charger is of powerful market competitiveness.
上傳時間： 2013-11-16
上傳用戶：cepsypeng
