dead circuit 中文意思是什麼
dead circuit
解釋
空路-
The new system consists of a single - chip computer system ( at89c51 + psd311 ) and alow power consumed analyzer by applying a new adc chip ads774, and a dead - time correcting circuit is designed to correct the collecting time
本系統由單片微機系統（ at89c51 + psd311 ）組成多道緩存，由低功耗模數轉換器組成分析器，與微型計算機通過列印并行介面實現數據通訊，並含有死時間校正電路。 -
The author has developed a simple and dependable circuit to generate the common dead time
在該方案中，設計了一種簡單可靠的pwm波公共死區的產生電路。 -
In the realization of the inverter control circuit, the frequency self - following system with optimal dead time based on dsp is researched
在逆變控制電路的實現中，研究了基於dsp的具有最佳死區的頻率跟隨控制系統。 -
In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
其次，通過對整個系統諧振頻率變化的分析和研究，設計了以鎖相環cd4046為核心的鎖相環控制電路，同時，在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上，進行了系統模擬，得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能，又擁有模糊控制較好的動態性能，系統魯棒性能好，同時也提高了逆變器的效率。 -
In the sub block circuit design, the contents that the author had introduced include : the principle of band gap voltage reference and the design technique in low power supply ; the analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit ; the selection of the width and length ratio of four switches and 2x / 1x mode change point in driver and mode selection circuits
在子電路設計中，作者比較深入分析的內容有:基準電路的原理及低電源電壓下基準電路的設計;振蕩器和控制電路中尖峰脈沖噪聲抑制、兩分頻電路及死區時間設定;驅動及模式選擇電路中開關管的寬長比的選擇及模式轉換點的設計。 -
One is based on vco, and the other is based on frequency divider. the advantages and disadvantages of them are discussed in the thesis. furthermore, a method of realizing dead time changeable circuit is given, which makes the designed driving circuit have more latitude when it is used
此外，論文還設計了兩種驅動信號產生電路，一種基於vco ，另一種基於振蕩器和分頻器，並對比了兩者的優缺點;給出了一種死區時間可變的電路實現方案，使所設計的驅動電路使用時具有更大的靈活性。 -
Electric - controller is nubbin in developping. we are based on designing to structure of circuit, we are dead against in time and stabilization for controlling and communications, precision and rapidity for transformation etc. we have completed to select on microprocessor, clock - frequency and a / d transfer. it carry out transformation for valve position signal, and select on solid - switch ac
在控制器的電路結構設計的基礎上，考慮到通訊、控制的及時、穩定、轉換的精度和速度等幾方面，主要完成對微處理器的選擇、時鐘頻率和a d轉換器的選用，閥位變送功能的實現，固態交流開關和顯示器的選擇等。 -
Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well
文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。 -
During the circuit design, the author analyzed the basic principle of the direct current motor, pwm control, h - bridge power driver, and two control techniques of h - bridge power drive circuit, designed its general structure, so the feasibility of the design is confirmed. then, reference, oscillator, power dmos gate drive circuit ( charge pump, bootstrap ), and dead time generation circuit are designed and analyzed in the sub - circuits. a current - controlled oscillator is presented in this thesis
在電路設計中，作者介紹了直流電機的工作原理和數學模型、脈寬調制（ pwm ）控制原理、 h橋電路基本原理和h橋功率驅動電路的兩種控制模式，設計了驅動電路的總體結構，給出了電路的功能模塊，確定了設計的可行性，然後在子電路模塊中，重點分析設計了基準源電路、振蕩器電路、高端功率管柵驅動電路（電荷泵及自舉電路） 、低端功率管柵驅動電路和死區時間產生電路。 -
This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法，用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變；逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器，提高了系統的動態響應指標；系統設計了完善的保護措施，並具有市電電網的故障診斷功能。 -
For the inverter control circuit, the simulation model of 74hc4046 is established. two pulse signals can be obtained by forming dead time, which are used to drive the switching devices
對于逆變控制電路，本文建立了基於74hc4046的模擬模型，通過死區形成環節得到兩路觸發信號，去驅動主電路的開關器件。 -
High - voltage alternating current circuit - breakers - guide for short - circuit and switching test procedures for metal - enclosed and dead tank circuit - breakers
高壓選擇電流線路斷路器.金屬封閉的和不通電的箱式線路斷路器短路和開關試驗設備指南 -
This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation ; the influence of snubber circuit, dead time effects, and modulation frequency to igbt pwm inverterbridge is taken into account, too
本文對雙極性調制的無刷直流電動機模擬，分析了轉速和調制頻率對轉矩影響；並綜合考慮緩沖電路、控制死區及載波頻率對pwm逆變電路中igbt開關損耗的影響。 -
The a / d and cap circuits on dsp sample the voltage and current signals coming from the signal sampling circuit and the speed signal of the motor respectively. the " dead time " register of the dsp prevent directive - through of the igbts on the up and the down bridge arms
利用dsp上的死區寄存器設置ipm驅動信號的死區時間防止上下橋臂igbt的直通；利用板上集成的a / d轉換器採集經過板級外圍電路處理的電路信號；利用板上的捕獲單元cap採集通過轉速計的輸出從而得到電機的轉速。 -
Because the company uses the “ direct money and products exchange ” sale method, which guarantee the company ' s capital return on time and current circuit system and avoid the risk of bad debt and dead debt risks, funon company obtains good financial status and runs well without bad loans and debts
由於實行銷售現款現貨制，有力地保證了資金及時回籠和公司現金流，完全規避了呆帳、壞帳風險，因此財務狀況良好，沒有任何不良債權債務，公司運轉十分正常。 -
In the realization of the inverter control circuit, the signal from the pll is input to ir2110 via adjusting phase and forming dead time. sg3525 is selected as the core device of the chopper. meanwhile. two pulse that will input to the chopper can be obtained by simple design. besides. the circuit of which core chip is dsp is described
在逆變控制電路的具體實現中，用鎖相環作為頻率跟蹤的核心器件，經相位調整、死區形成等環節得到兩路觸發信號，輸入到ir2110中即可作為逆變器的驅動信號。
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