dspic® dsc device resource allocation for push pull converter

... TL494, TL594, TL598, has been used in many low-voltage input push- pull converter The optimal PWM for high-voltage, high-power push pull converters is believed to be one similar to the TL598 but ... problem of push- pull converter However, the higher noise sensitivity of current-mode control normally prevents it from being successfully used in highvoltage, high-power push- pull converter There ... the other can be used for average current limit Since the outputs of two error amplifiers are OR-ed together, the push- pull converter operates with voltage control mode before getting into the...

Ngày tải lên: 26/11/2015, 09:41

... latency for each application into a performance model, which computes the latency estimates for that application for all possible resource configurations We thus obtain a set of resource- to-performance ... and MRC partitioners under-perform for the same reason as before i.e., because allocating either cache or disk resources 50/50 penalizes UNIFORM Hence, GLOBAL+ performs a factor of 1.14, and 2.29 ... background on existing techniques for server consolidation in modern data centers, highlighting the need for a global resource allocation solution We describe our multi -resource partitioning algorithm...

Ngày tải lên: 19/02/2014, 12:20

... network coding for a sum-rate of R = 4.0 bits per symbol If the time allocation is optimized for an equal rate allocation, network coding gains more than 3.4 dB for R = 3.0 bits per symbol For an equal ... with si = for all i ∈ {1, 2, , N } which is given by [σ ∗ b∗ ]T = B−1 · b (45) S S closed form expressions for the optimal time allocation We also obtained a closed form expression for the optimal ... largest rate For example, for γR1 = 10 dB the optimal allocation vectors are given by σ ∗ = [0.66 0.34]T , ∗ θ∗ = [0.397 0.206]T and θR = 0.397 The rate for equal time and rate allocation with...

Ngày tải lên: 20/06/2014, 20:20

... algorithms for the single user OFDM system Resource allocation with quantized CSI was investigated in [3-5] The authors in [3] assumed uniform power distribution over subcarriers and derived closed-form ... ˆ ε For a given capacity of the feedback channel, we have characterized the distortion in Section With the quantized downlink CSI, the resource allocation can be carried out for a given performance ... K users for each subcarrier n, and thereby, the complexity of subcarrier allocation is O(KN) In the power allocation, in each iteration for μ in Equation 13, we need to compute N power allocation...

Ngày tải lên: 21/06/2014, 01:20

... Number of reallocated resource unit (R) N = Reallocation N = Reallocation N = Reallocation N = Reallocation N = Reallocation Figure 7: Performance of the radio resource reallocation algorithm ... radio resource allocation and reallocation algorithms is to find the resource unit vector (coloring vector) cX for X such that the used resource units are minimized The proposed radio resource allocation ... perform the radio resource allocation algorithm for those cn,n = 0, or (ii) assign a nonconflicted resource unit (try to find a used resource unit first and may use a new resource unit if no used resource...

Ngày tải lên: 21/06/2014, 05:20

... throughput performance for the scheme without using priority the AP becomes the bottleneck for the communications in IEEE 802.11 For the scheme without cooperation, we fix the resource allocation ... problem, we will propose an adaptive resource allocation scheme described as follows 5.1 Adaptive Resource Allocation In order to appropriately allocate resources to eliminate the AP bottleneck, ... the same medium The designed cooperation mechanism also enables resource allocation where optimal resource allocation is proposed for the VoIP applications to eliminate its capacity bottleneck...

Ngày tải lên: 21/06/2014, 11:20

... the optimal time slot allocation It is worth to note that the resource allocation is computed for each super frame Let’us denote K as superframe size, the PRR based resource allocation can be described ... required sensing period for MAC layer scheduling is determined Packet reception rate- (PRR-) based resource allocation is proposed to calculate the optimal time slot allocation for each user Then, ... i=1 The performance of these cooperative sensing schemes will be compared to give an insight to the preferred one to be deployed 3.3 PRR-Based Resource Allocation PRR-based resource allocation...

Ngày tải lên: 21/06/2014, 11:20

... there are three cases for the maxmin optimization (A.7) as given in Proposition B Optimal Resource Allocation Proof We provide the proof for optimal resource allocation for (3, 2)-MBRC To so, ... Specifically, for (3, 2)-MBRC, we plot the capacity lower bound (LB) obtained by optimal resource allocation as well as the capacity upper bound (UB) with the same resource allocation parameters For comparison ... relay in order to find optimal resource allocation strategy In this paper, we investigate the optimal resource allocation strategies that maximize the capacity bounds for a simple hybrid wireless...

Ngày tải lên: 21/06/2014, 18:20

... needed for the lower-resolution image to get back to the original size The other issue is the complexity for coordination for resource allocation The optimization in (16) is performed, and resource ... the resources and there are autonomous users that request resources in the network Very recently, researchers start to explore the auction-theory-based solutions for resource allocation for video ... system performance, and especially on how to conduct resource allocation for relays Each relay helps to connect a group of transmitters with a number of receivers During the resource allocation...

Ngày tải lên: 21/06/2014, 20:20

... this paper, we propose an architecture for a network utilizing the out-of-band transmission for the forwarding traffic along with TDS for the access traffic for the joint optimization of the degree ... in the resource allocation independent of the others We assume that each relay covers p (0 ≤ p ≤ 100) percentage of its corresponding sector area The resource allocation problem is solved for a ... the forwarding traffic We also refer to the transmission on the regular FDD bands as in-band forwarding, and the transmission on an additional unlicensed band as out-ofband forwarding In-band forwarding...

Ngày tải lên: 21/06/2014, 22:20

... all users compete for resources according to the criteria that the Highest Quality Improvement the Highest Possibility Resources (HQIHPR) [2] Using KSBS, users compete for resources to make efficient ... required to achieve rth Fortunately again there are several solutions available for different scenarios For example, in [20] a generic procedure, CLARA, was presented for crosslayer resource minimization ... competition and cooperation in resource allocation We formulate the coopetition strategy mathematically and solve it efficiently using LOD method This mathematical formulation would help to get...

Ngày tải lên: 21/06/2014, 22:20

... equivalence was shown for the general case with multiple Lagrange multipliers by Everett [5]; for clarity I summarize his argument for the multiplecell, single-λ case of (7) here Theorem For any nonnegative ... optimization problem In other words, if we solve the reformulated problem for some λ ≥ and get back a configuration for which i Bi (xi ) is C, for that particular C and λ the solutions of the constrained ... to the form max We can apply the Lagrangian technique to the resourceallocation problem in (2) by realizing that we have a utility function analogous to the A(·) shown in (3), and several resource...

Ngày tải lên: 21/06/2014, 23:20

... in Proposition 1, for any given channel resource allocation and for any feasible R2,tar , a closed-form solution for the optimal power allocation can be found In particular, for any given r, PR1 ... fixed resource allocation, a closed-form solution for the optimal power allocation is obtained By exposing the quasiconvexity of the problem and by obtaining a closed-form solution to the power allocation ... development of algorithms for the jointly optimal allocation of the relaying strategy JOINT POWER AND CHANNEL RESOURCE ALLOCATION It was shown in [13] that for fixed channel resource allocation, the problem...

Ngày tải lên: 22/06/2014, 01:20

... incorporates the information of both the network side (channel) and the user side (rate and delay) in a unified way for radio resource allocation We focus our attention on the downlink resources (i.e., ... [6] For the downlink, the power allocation problem for multiservice DS-CDMA wireless networks is studied in [14], where the downlink power control problem for multicell wireless networks is formulated ... a tool to optimize the resource allocation scheme 4.3 Utility-based resource allocation Considering the delay tolerance of a nonreal-time data user, the network can wait for a good channel status...

Ngày tải lên: 22/06/2014, 22:20

... approach for addressing these issues is the dynamic wireless resource allocation The basic idea of resource allocation is to adapt the link transmission scheme to improve the system performance ... literature review of resource allocation strategies for infrastructure-based wireless networks, wireless sensor networks, and multi-hop wireless networks is given New resource allocation methods ... current channel state information and long-term system preferences Many existing scheduling and resource allocation schemes are formulated as a utility-based throughput allocation problem, such...

Ngày tải lên: 10/09/2015, 15:52

... Fig.1.2 with interleaved subcarrier allocation for the two users 1.4 Motivations in OFDMA-based resource allocation The main allocation issue in OFDMA-based resource allocation is to jointly optimize ... system performance metrics, which forms the main contributions in this chapter 31 Chapter Resource allocation for MIMO-OFDMA In this chapter, we consider different utility-based resource allocation ... the users decode the received data respectively after performing Fast Fourier Transform (FFT) For various resource allocation problems formulated from Fig.2.1, many solutions have been proposed...

Ngày tải lên: 11/09/2015, 10:15

... RESULTS FROM THE PROPOSED PUSH PULL CONVERTER WITH ACTIVE-CLAMP CIRCUITS This paper has proposed a push pull converter with activeclamp circuits In the paper, analysis of the converter has been presented ... relatively feasible for high step-up discharger applications REFERENCES TABLE III LOSS ANALYSIS OF A HARD-SWITCHING PUSH PULL CONVERTER AT KW TABLE IV LOSS ANALYSIS OF THE PROPOSED PUSH PULL CONVERTER ... zero-voltage-switching (ZVS) push pull DC/DC converter for UPS,” in Proc IEEE Power Electron Drive Syst Conf., 2003, pp 1495–1499 [5] M Shoyama and K Harada, “Zero-voltage-switched push pull DC–DC converter, ”...

Ngày tải lên: 26/11/2015, 09:40