dc characteristic of llc resonant converter

... coefficients of DC, sine and cosine components are then separated to obtain the modulation equations (an approximate large signal model) SMALL SIGNAL MODELING OF LLC RESONANT CONVERTER Resonant DC/ DC converters ... transformation Figure 10 illustrates the block diagram of the LLC resonant converter with a digital compensator BLOCK DIAGRAM OF LLC RESONANT CONVERTER Resonant Converter VREF [n] e[n] + – Vm[n] 3P3Z Compensator ... model of the LLC resonant converter power stage and are illustrated in Figure It is important to note that the input of Equation 12 through FIGURE 6: LARGE SIGNAL MODEL OF LLC RESONANT CONVERTER...

Ngày tải lên: 11/01/2016, 16:57

... Director of the Department of Nuclear Energy Science and Engineering, the Director of the Department of Power Engineering and the Superintendent of the Postgraduate School Now, he is the Dean of the ... Influence of the temperature of hot reservoir TH on the power output Pm versus r0 characteristic in maximum power operation regime with k f = 1.5 × 10−14 W K Figure Influence of the temperature of hot ... influence of the temperature of hot reservoir TH on the power output Pi versus central energy ER characteristic in intermediate operation regime It can be seen that the characteristic curves of Pi...

Ngày tải lên: 05/09/2013, 15:28

... required for the supply of a DC motor drive system Structure of a system with DC to DC converter is shown schematically in Fig 3.11 AC line voltage DC DC DC Diode Filter DC to DC Load rectifier (unregulated) ... Applications DC to DC Converters The DC to DC converters are widely used in regulated switch-mode DC power supplies and in DC motor drive applications The input to these converters is often an unregulated ... output of AC DC and DC DC converters (left) and AC→AC and DC AC converters (right) 3.2 AC to DC Converters (Rectifiers) Rectification is undoubtedly the most frequently met application of PECs...

Ngày tải lên: 17/12/2013, 14:15

... inner The lengths and basin areas of these rivers are shown in the following table (Table 2) Table Characteristics of water drainage rivers of Hanoi No Name of river Lu Set Kim Ngu To Lich Total ... The basin area of Set river is 580 with a population of 250 thousand people The totals of wastewater discharged in to the river ranges from 65,000-70,000 m3 day-1 Begin of river End of river Trinh ... flow is of 110,000- 125,000 m3 day-1, with a population of more than 560 thousand people 45 3.2 Wastewater characteristics The results of wastewater analyzes are presented in Table Table Characteristic...

Ngày tải lên: 22/03/2014, 12:20

... spread in the number of charge carriers, variations in the charge collection efficiency, and contributions of electric noise Which of these factors dominate depends on the energy of the radiation ... line) of Ortec detector (GEM40P4) In order to evaluate the dependence of the HPGe energy resolution on the gamma-ray energy, the FWHM of the Gaussian curve, fitted to each corrected histogram of ... efficiency for energy Ei of source 1, usually it is taken as 100%, ε 2,re ( E j ) is the relative efficiency for energy Ej of source 2, n1 ( Ei ) and n ( E j ) are the count rates of source at energy...

Ngày tải lên: 28/03/2014, 13:20

... addition of mL of chloroform ⁄ methanol (2 : 1, v ⁄ v) and 500 lL of water The formed products were extracted and analyzed as described above Statistical analysis The level of significance (P) of the ... area of silica gel corresponding to PI was scraped off the plates into vials Two hundred microliters of mm CaCl2, 50 mm Tris–HCl (pH 8.9) and 200 lL of diethyl ether were added After 15 of sonication, ... was then scraped off the plates into vials Four hundred microliters of diethylether and 280 lL of 50 mm Tris–maleate 10 mm CaCl2 (pH 5.8) were added After 15 of sonication, 160 lL of enzyme solution...

Ngày tải lên: 29/03/2014, 22:21

... variance of 1%, offset errors (for the MDAC and the comparators) of 1%, and third-order nonlinearity at the output of the MDAC stage with a variance of 0.1% This results in variance of the radix of ... previously Table shows the bandwidth of the PRBS as a function of L For each value of L, we report the fraction of the Nyquist bandwidth in which 50% and 90% of the noise power is concentrated ... use of Lagrange interpolation and the predicted input signal level is used to reduce its impact on the process of estimation of the error terms The availability of high-resolution, high-speed ADCs...

Ngày tải lên: 22/06/2014, 19:20

... of this many (n − 2)-dimensional spheres A different, independent proof of this theorem was found simultaneously by Tomie in [13] While our proof proceeds by explicitly enumerating the faces of ... version of rank-selected chain enumeration will be important in the proof of our main theorem in Section Given a finite reflection group W of rank n, let RW (s1 , s2 , , sl ) denote the number of ... Euler characteristic χ( · ) of (the order complex of) NC (m) (W )\ {c} ∪ mins ˜ For a finite real reflection group W of rank n, let us again write RW (s1 , s2 , , sl ) for the number of (multi-)chains...

Ngày tải lên: 08/08/2014, 01:20

... risk of atherosclerosis The lipid profile of patients with RA has been evaluated in several studies Some of these studies have reported lower levels of HDL-C and TC, higher serum concentrations of ... study None of the patients reported a modification of dietary habits or experienced significant changes in body weight during the study The clinical characteristics and lipid profiles of patients ... lipid profile of patients with active or untreated RA is primarily characterized by a decrease in serum levels of HDL-C whereas contrasting results have been published on the serum levels of TC...

Ngày tải lên: 09/08/2014, 08:22

... Idea: Given a collection of images,     Think of each image as a document Think of feature patches of each image as words Apply the LDA model to extract topics Examples of ‘visual words’ Topic ... the definitions of u-separation and d-separation is the Markov property (or Markov condition), which defines the decomposition of the global distribution of the data into a set of local distributions ... of E, given C) Local Markov property: X is independent of all other nodes given its neighbors (here: A is independent of D and E, given C and B Graphical models Learning   Form the input of...

Ngày tải lên: 12/10/2015, 08:52

... intensity of the signal reaches the maximum value Iout = 8.5w/cm2 (Fig 3) and performance of devices = 4% II.2 Influence of the reflection coefficient of the mirror M2 In the structure of SNMI, ... the role of mirror M2 is generated feedback signal, so that reflection coefficient of it have influence on bistable characteristics of SNMI In fig is the bistable curves for the case of reflection ... Input-output relationship of the intensity of SNMI has been established on the basis of interference theory From this relationship, the role of the reflectors and the input position of the light was discussed...

Ngày tải lên: 30/10/2015, 20:49

... origin of internal friction and investigated the effects of quantum friction on performance of quantum thermodynamic cycles [24-29] Rezek and Kosloff [30] investigated the optimal performance of ... 046134 Feldmann T, Kosloff R Characteristics of the limit cycle of a reciprocating quantum heat engine Phys Rev E, 2004, 70(4): 046110 Wang J, He J, Xin Y Performance analysis of a spin quantum heat ... International Journal of Energy and Environment (IJEE), Volume 6, Issue 6, 2015, pp.537-552 n0 initial value of n population of the thermal phonons of the cold reservoir asymptotic value of n nc ne Γˆ...

Ngày tải lên: 20/11/2015, 14:04

... Method of determining the degree of secondary alteration of sandstone Method of determining the degree of secondary alteration based on the type of secondary and number of particles exposure of quartz ... position: The distribution of continental lithofacies is the most extensive of which occupied mainly alluvial lithofacies Deltaic and marine lithofacies occupying an area of very narrow compared ... 4231.7) On cross lithofacies - acient geographic clay bays offshore software development and the top of the Result analysis of petrographic and geochemical features indicate some of the following:...

Ngày tải lên: 09/04/2016, 18:01

... Chemistry, Ministry of Industry and Trade of Vietnam ‘Tia Sang’ magazine, Ministry of Science and Technology of Vietnam Faculty of Environmental Sciences, Hanoi University of Science, VNU, 334 ... The basin area of Set river is 580 with a population of 250 thousand people The totals of wastewater discharged in to the river ranges from 65,000-70,000 m3 day-1 Begin of river End of river Trinh ... flow is of 110,000- 125,000 m3 day-1, with a population of more than 560 thousand people 45 3.2 Wastewater characteristics The results of wastewater analyzes are presented in Table Table Characteristic...

Ngày tải lên: 18/02/2017, 22:24

... dynamic changes of circuit quantities – voltage changes of supply source, converter load changes, change of thyristor firing pulses, etc At first, the impact of phase voltage change of power grid ... Ruppert, M.: Analysis of Non -characteristic Harmonic Currents of Semiconductor Converters [PhD thesis] West Bohemia University, 2002 Figure 25 Dependence of interharmonics on the value of one firing ... For example the case of an AC /DC converter under transient conditions – dc machine breaking It presents the impact of control intervention on the harmonic contents During converter stop, the phase...

Ngày tải lên: 29/08/2017, 14:57

... Trường hợp đặc biệt tất xung điều khiển thay đổi Ví dụ trường hợp chuyển đổi AC /DC điều kiện chuyển tiếp- ngắt máy dc Nó đưa vào tác động can thiệp điều khiển đến hàm lượng hài Khi chuyển đổi dừng, ... dòng lấy chỉnh lưu từ mạng phân phối điện Nó đòi hỏi mơ hình tốn học chuyển đổi AC (xoay chiều) /DC (một chiều) Dạng sóng điễn hình dòng pha lấy điều kiện hoạt động lí tưởng (nguồn cơng suất đối ... đặc trưng ….ở h số nguyên >0, trừ hài đặc trưng (f=50, 250, 350, 550, 650 etc Hz lưới điện 50 Hz) DC f = Hz (f = h* f1 h = 0) Liên hài f ≠ h * f1 h số nguyên > Hài phụ f > Hz f < f1 Ở f1 số hệ thống...

Ngày tải lên: 29/08/2017, 14:57

... algebra Proof A ssum e that the class R of all 5-regular algebras is a radical class Now suppose that / is an 5-regular ideal o f an algebra and for every a of A there exists an element X of A'*' ... the class of all S-rcỊỊỉUar algebra IS a radical class in II’ i f and only i f the following condition is satisfied If I is an S -rcyular ideal of the algebra A and f o r every element a of A there ... then S /t ( ( 0 , ) ) = f o r every algebra A of the class IF P r o p o s it io n The class of the S-re.qular algebras is hom om orphically closed Proof Let B be ail image o f an 5-regular algebra...

Ngày tải lên: 11/12/2017, 22:07

... Determination of absolute cfficicncy of high punlv Gc dctcctor" Communicalion inPhyics, [3] (2003) 233 J Lin» E.A Henry, and k.A Mcycr, ‘ Dctcciion Efficicncy of Gc(Li) and HPGc Dclcctors for ... t h e distance between source and dctcctor) I'urlhermore, long-term chan^cs in charuc collcclion cii'icicrncy and w indow thickness can lead lo drills in the dctcclor ciTicicncy over p eriods ... m easu rem en ts G E M 0P dctcclor w hich w as localod in Nuclear D epartm ent (Hanoi U niversity o f Siences) were produced by O R T liC co m p an y It is the first dctcctor have cooled dow...

Ngày tải lên: 14/12/2017, 14:14

... 10 (color online) Projections of invariant mass squared of (a) s12  m2 J= c ỵ ị and (b) s23  m2 ặ ặ ị of the background Dalitz plot 052006-6 ANALYSIS OF THE RESONANT COMPONENTS IN B" 0s ! ... negative of the logarithm of the likelihood, À ln L, of the fits are given in Table IV There are two solutions of almost equal likelihood for the 3R ỵ NR model Based on a detailed study of angular ... 1370ị ỵ f2 1270ị ỵ nonresonant f0 980ị ỵ f0 1370ị ỵ f2 1270ị ỵ nonresonant ỵ 770ị f0 980ị ỵ f0 1370ị ỵ f2 1270ị ỵ nonresonant ỵ f0 1500ị f0 980ị ỵ f0 1370ị ỵ f2 1270ị ỵ nonresonant ỵ f0 600ị 052006-7...

Ngày tải lên: 16/12/2017, 11:01

... following, V dc = V dc = π π 2V L L (6) 6V (7) From (3) and (7), the equation of Idc and I, concisely expressed is obtained π I dc = I Fig Typical wind power versus turbine rotor speed III CONVERTER ... converted into DC power through diode bridge rectifier circuits with a unity power factor and the load current is continuous [13] Pt = 3VI = V dc I dc (3) Where, Vdc, Idc are DC side voltage ... gives the schematic diagram of the stand-alone wind energy system under consideration A three-phase PMSG is connected to a DC battery bank via a rectifier The DC/ DC converter is connected with...

Ngày tải lên: 03/01/2014, 19:15