resources required for a digital push pull converter

... illustrating a tight output regulation WU et al.: AN ACTIVE-CLAMP PUSH PULL CONVERTER FOR BATTERY SOURCING APPLICATIONS TABLE I MEASURED RESULTS FROM A HARD-SWITCHING PUSH PULL CONVERTER 203 its hard-switching ... balance the excessive flux inducing from a larger duty ratio The volt–second and amp–second balances in the leakage inductors, transformer, and clamping capacitors can always hold in the steady ... explained as follows In practice, a real circuit would have different duty ratios for the main switches, which will WU et al.: AN ACTIVE-CLAMP PUSH PULL CONVERTER FOR BATTERY SOURCING APPLICATIONS...

Ngày tải lên: 26/11/2015, 09:40

... voltage-mode control with leading-edge modulation was made Also at this point, it is apparent that two of the three major advantages attributed to current mode are not critical in this application ... switches against transformer saturation, 2) a slow current limit circuit for protection against an sustained excessive output load current, and 3) an over-current latch-off circuit for protection against ... are used because there is not enough height allocated to allow the use of a single transformer Also two transformers have more surface area for cooling and thus allow the use of smaller wire,...

Ngày tải lên: 26/11/2015, 09:41

... Merilainen et al ¨ Table Calorimetric analysis of CoA binding to the Z ramigera biosynthetic thiolase at 25 °C The values and error estimates are calculated from separate measurements (three for ... interactions at the thiolase active site liquor, was allowed to continue for days prior to data collection This experiment was performed for both a wildtype thiolase crystal and a C8 9A mutant ... to favour a similar mode of binding for Ac-OPP and Ac-CoA Binding mode of CoA to thiolases oxidized or acetylated at Cys89 The structure of CoA-complexed Z ramigera thiolase, in which the catalytic...

Ngày tải lên: 16/03/2014, 04:20

... dụng: +Push- pull: Bộ biến đổi dùng hai transitor có hiệu đặc biệt điện áp thấp Dùng hai transitor để biến đổi DC-DC Mỗi transitor dẫn n a chi kỳ khơng dẫn.Khi transitor A dẫn cuộn sơ cấp ph a cấp ... khoa học kĩ thuật vào đời sống Push – pull converter biến đổi DC – DC có hiệu suất cao ,được ứng dụng nhiều thiết bị với độ ổn định tin cậy cao ,giá thành thấp,an toàn cho người sử dụng Push – pull ... c a tạo dao động thời gian tụ điện (CT) cho hai tín hiệu điều khiển Tại ngỏ kích hoạt thời gian điện áp c a lớn tín hiệu điều khiển điện áp Khi tín hiệu điều khiển tăng, thời gian, đầu vào cưa...

Ngày tải lên: 10/05/2014, 01:14

... Hill 15 Mar 1998 29 May 2015 Push- pull converter 2006 Wikipedia 29 May 2015 PHỤ LỤC A: LÕI MÁY ... đổi tĩnh Push Pull Converter Tín hiệu ngõ sau đ a thang 5V nối vào chân (-) op-amp số để so sánh với điện áp chuẩn 5V nối vào chân (+), vi sai sau khuếch đại, tỉ lệ khuếch đại tính tốn d a điện ... phải thấp Một yếu tố quan trọng khác việc l a chọn transitor tốc độ đóng cắt transitor 11 Các biến đổi tĩnh Push Pull Converter Transior phải có khả đóng căt nhanh lý sau đây: Tần số đóng cắt...

Ngày tải lên: 21/07/2015, 15:16

... compares our technique with other proposed techniques which address the same problem STANDARD DIGITAL BACKGROUND CALIBRATION A pipeline ADC is composed of a cascade of stages that perform an analog-to -digital ... receivers for different standards can be implemented on a single hardware platform In this situation, the input to the ADC is a narrowband signal, with no information content at dc, and occupies only a ... ADC with 14-bit nominal resolution, to calibrate the first stage where an error on the radix R has been forced Monte Carlo iterations have been performed for the parameter R varying in a suitable...

Ngày tải lên: 22/06/2014, 19:20

... In multicast approach (Fig 1c), data is transmitted to a set of receivers After receiving data, a receiver can copy and forward this data to another receiver Therefore, multicast approach reduces ... sub-trees and allows nodes at the nearest level in different sub-trees to exchange data with each other Therefore, we can reduce the time gap between arrival times of pushing data and pulling data As a ... R1R3 and R1R5, respectively After that, H1 copies data and forwards to H4 via links of routers R2R3 and R3R4 H3 Chapter Background Figure 2.3: An example of ALM copies data and forwards to H2 via...

Ngày tải lên: 25/03/2015, 09:37

... [ZLZY05] Meng Zhang, Jian-Guang Luo, Li Zhao, and Shi-Qiang Yang, A peerto-peer network for live media streaming using a push- pull approach, Proceedings of the 13th annual ACM international conference ... http://www.nd.edu/ networks/ [PKT+ 05] Vinay Pai, Kapil Kumar, Karthik Tamilmani, Vinay Sambamurthy, and Alexander Mohr, Chainsaw: Eliminating trees from overlay multicast, Peer-to-Peer Systems IV, vol ... design and implementation (Berkeley, CA, USA), OSDI ’06, USENIX Association, 2006, pp 191– 204 [LKHT10] Hao Luan, Kin-Wah Kwong, Xiaojun Hei, and Danny Tsang, Adaptive topology formation for peer-to-peer...

Ngày tải lên: 18/12/2017, 00:28

... inverters can accommodate a wide range of input dc voltage for an improved energy output from variable wind turbine resources The input source and the output grid are separated based on flyback operation ... (DCM); the averaged current of Mode is the average output current of the inverter and can be expressed as, 230 vc is the capacitor voltage and is in the same order as the grid voltage The voltage stresses ... the parameters of the inverter, a consideration for overall inverter operation under various input voltage is required Through simulation studies, the required modulation index and operation...

Ngày tải lên: 03/01/2014, 19:16

... pGL3b:Prm3ac & pGL3e:Prm3ac (Primer Kin188; 5¢-dGAGAGGTACCGAATTAATCACAAGCAA ATCTTCTC-3¢, corresponding to NTs )119 to )94) (7) Prm3aab; pGL3b:Prm3aab & pGL3e:Prm3aab (Primer Kin160; 5¢-dGAGAGGTACCGCAAATCTTCTCTCGCC ... Kin175 (5¢-CACCAGAGCTACTTACA CTGAATTCCAGAATAATCACAAGCAAATC-3¢; sense primer) vs its complement generating pGL3b:Prm3aOCT)1*, pGL3b:Prm3abOCT)1* and pGL3e:Prm3aOCT)1*, OCT)1 * pGL3e:Prm3ab Mutation ... generating pGL3b:Prm3AP)1*, pGL3e: Prm3AP)1*, pGL3b: Prm3aAP)1*, pGL3e:Prm3aAP)1*, pGL3b:Prm3abAP)1*, pGL3e: Prm3abAP)1*, pGL3b: Prm3aaAP)1*, pGL3e:Prm3aaAP)1*, pGL3b:Prm3aaaAP)1* and pGL3e:Prm3aaaAP)1*...

Ngày tải lên: 19/02/2014, 16:20

... peroxisomal aspartate aminotransferase Aat2p in HPLC fraction at a molecular mass of approximately 45 kDa (Fig 1A) [15] The predicted molecular mass of Lpx1p is 44 kDa It carries a peroxisomal targeting ... (AAC71532) and with the putative triacylglycerol lipase AAB96044 from Mycoplasma pneumoniae (Mp) Identical amino acids are indicated by an asterisk and similar amino acids are indicated by a colon and ... Hegemann, Dusseldorf, Germany) For ă construction of pUG36-LPX1 (GFP–LPX1), PCR-amplified YOR084w (primers 5¢-GAGGATCCATGGAACAGAACA GGTTCAAG-3¢ and 5¢-CGGAATTCTTACAGTTTTTGT TTAGTCGTTTTAAC-3¢) was...

Ngày tải lên: 07/03/2014, 05:20

... military forces and resources to a viable American strategy, it, too, will fail Paradoxically, as American power and influence are at their apogee, American military forces limp toward exhaustion, ... the radical overhaul the Army needs accuracy and virtual impunity American air power has become a metaphor for as well as the literal manifestation of American military preeminence American landpower ... in military affairs to offset American advantages in naval and air power, for example If the United States is to retain the technological and tactical advantages it now enjoys in large-scale conventional...

Ngày tải lên: 07/03/2014, 10:20

... to Patthy [29] Splice donor Intron no (length; bp) Splice acceptor Phase of intron acag|gtaag tatg|gtaag tatg|gtaag agag|gtaag g(t)5aacag|aagaa c(t)4gtatacag|actc a( t)4cag|atcc c(t)4ag|aatc Not ... (5¢-CGGGATCCCAATCTGTTGCTAA TTAGG-3¢) and the 3¢ specific oligonucleotides (5¢-GA AGATCTACCACACCTCCTCATCTCC-3¢) for amplification of the region from )180 to )36 and (5¢-GAAGAT CTAACTAGATTTTACCATTGG-3¢) for amplification ... stranded oligonucleotides spanning the region from )70 to )36 of the xMGP promoter (5¢-GATCCAGGGGAGGGAAAACAAGGA GATGAGGAGGTGTGGT-3¢, and 5¢-GATCTACCA CACCTCCTCATCTCCTTGTTTTCCCTCCCCTG-3¢) as BamHI/BglII...

Ngày tải lên: 08/03/2014, 10:20

... activate it Active RPTPa-D2 is required for Src activation Materials and methods Materials and antibodies Anti-HA-tag (12CA5), anti-Src (327) Igs and anti-RPTPa (5478AP) serum were prepared as ... distinctive form of Noonan syndrome Nat Genet 39, 75–79 37 Razzaque MA, Nishizawa T, Komoike Y, Yagi H, Furutani M, Amo R, Kamisago M, Momma K, Katayama H, Nakagawa M et al (2007) Germline gain-of-function ... forward and reverse oligonucleotides: 5¢- ATG AAG AAG AAC CAT GTT TTA CAG ATC -3¢ and 5¢ - GAT CTG TAA AAC ATG GTT CTT CTT CAT - 3¢ The constructs encoding WT, R554H or C723S GST-PTPalpha D2...

Ngày tải lên: 15/03/2014, 10:20

... 5¢-TTAAAAGAACCAGATTAGTCAATTGATTAACGTGCT-3¢ 5¢-AGCACGTTAATCAATTGACTAATCTGGTTCTTTTAA-3¢ 5¢-AAGCAAGAACAGTTCACTGCAGCTTTTGGTCAAGCAGGTAACTAGTCAATTGAT-3¢ 5¢-ATCAATTGACTAGTTACCTGCTTGACCAAAAGCTGCAGTGAACTGTTCTTGCTT-3¢ ... 5¢-GCCCATATTCGTCGACGCGCTAACAGGTACCAGAGGAGAAGGAGAGAGCGAAGCAAGTAG-3¢ 5¢-GGGCGGATCCTCTGCTTTTCTTTATC-3¢ 5¢-GCGCTAATGCAACCGTAGTCAATTGATTAACGTGCT-3¢ 5¢-AGCACGTTAATCAATTGACTACGGTTGCATTAGCGC-3¢ 5¢-TTAAAAGAACCAGATTAGTCAATTGATTAACGTGCT-3¢ ... 5¢-GCGCTAATGCAACCGATAGATGTCTCTACGGAGGAC-3¢ 5¢-GTCCTCCGTAGAGACATCTATCGGTTGCATTAGCGC-3¢ 5¢-GACGACGAAACAAGAAAAGATGGCGCCATCGAGATG-3¢ 5¢-CATCTCGATGGCGCCATCTTTTCTTGTTTCGTCGTC-3¢ 5¢-TGCTCTCCAGGTGATGATATTGAAGCTGATGAATTA-3¢...

Ngày tải lên: 16/03/2014, 13:20

... were as follows: cycD-F, 5¢-GGGATCCCA CATTGTATTCG-3¢; cycD-R, 5¢-ACGGAGCTTTGAAG CCAGTA-3¢; cycE-F, 5¢-AAGGTGCAGAAGACGCA CTT-3¢; cycE-R, 5¢-AATCACCTGCCAATCCAGAC-3¢; cdk4-F, 5¢-TACAACAGCACCGTGGACAT-3¢; ... 5¢-TGGGCATCGAGACTATAGGG-3¢; rp49-F, 5¢-CGG ATCGATATGCTAAGCTG-3¢; and rp49-R, 5¢-GAACG CAGGCGACCGTTGGGG-3¢ Acknowledgements We would like to thank Haruki Shirato for providing the FLAG–mjmj plasmid and ... magnification of merged images of dJmj and DAPI staining showed that dJmj was localized mostly to bands, but it was also observed in interbands and at band–interband boundaries, and no correlation...

Ngày tải lên: 23/03/2014, 07:20

... [8–13] and Arabidopsis thaliana [14,15] Yeast, flies, nematodes and mammals encode a single SPO11; however, plants (e.g Arabidopsis and rice Oryza sativa) encode at least three SPO11 paralogues ... Protein Data Bank and was employed as the basal structure A molecular diagram was generated using molfeat, version 2.2.1.8 (FiatLux Co., Tokyo, Japan) The authors would like to thank the Arabidopsis ... an interacting protein(s) to SPO11-1 is required to place Tyr103 at the appropriate location for DNA cleavage, and this could provide an explanation for the absence of a detectable endonuclease...

Ngày tải lên: 29/03/2014, 09:20

... binding domain, Gal4-AP2, Gal4-VP16 and GAL4-CTF The gene that encodes the Gal4-AP2 transcriptional activator, which contains the Gal4 DNA binding domain and an activation domain from the AP2 transcription ... 17 Naar, A. M., Beaurang, P .A. , Zhou, S., Abraham, S., Solomon, W & Tjian, R (1999) Composite co-activator ARC mediates chromatin-directed transcriptional activation Nature 398, 832 18 Naar, A. M., ... the largest subunit of RNAPII The RNAPII holoenzyme was also able to support transcriptional activation (at least fivefold, as measured with a Phosphoimager) by the mammalian Gal4-AP2 transcriptional...

Ngày tải lên: 30/03/2014, 14:20

... used for broadcast purposes) It is a set of two analog signals, one analog Y and one that carries the analog U and V information in a specific format (also called C or chroma) Once available ... -4 = = = = = 21 SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE 16 BITS PER SAMPLE DATA DATA DATA DATA DATA Figure 3.4 4:2:2 Frame Buffer Formatting SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE ACTIVE LINE NUMBER ... These equations are usually scaled to simplify the implementation in an actual NTSC digital encoder or decoder Note that for digital data, 8-bit YIQ and R´G´B´ data should be saturated at the and...

Ngày tải lên: 18/04/2014, 12:27

... treated with DTT and NP40 to separate the envelope fraction from the core fraction and protein from each sample was separated by SDSPAGE and detected by Western blot with anti-I7L antisera As ... accumulation of immature viral particles, some with nucleoids, as well as the appearance of crescent shaped particles (Fig 4, panels D-F), similar to those observed by AnsarahSobrinho et al [5] Also ... panels A, B, D, E, and F represents 400 nm The bar in panel C represents 200 nm G1L are associated with the immature virus along with the accompanying DNA and other viral proteins, then activation...

Ngày tải lên: 18/06/2014, 22:20