'Pf 0' presentation slideshows

Design of UAV Systems

894 views • 64 slides

A Forest Fragmentation Index to Quantify the Rate of Forest Change

A Forest Fragmentation Index to Quantify the Rate of Forest Change. James D. Hurd, Emily H. Wilson, Daniel L. Civco Center for Land Use Education and Research (CLEAR) Department of Natural Resources Management & Engineering The University of Connecticut U-4087, Room 308, 1376 Storrs Road

845 views • 64 slides

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???? LED ???? ???????. On-Bright Electronics 2011 ? 9 ?. LED ???????????????. ????. ??? ???? 50,000hr ?????? ????? ??? ??????? ????????. ???? !! ???????? ???? ??? PF ? ????? ?????? ???? / ????. ???? ??. ??. LED ??. LED ??. ????. ??? ?? ??? PF/THD. ??? ???? ????.

1.4k views • 41 slides

QUALITY CONTROL AND ACCEPTANCE

404 views • 40 slides

??? LED ????? ???? ???? ????

428 views • 24 slides

Rectifier Concepts

Rectifier Concepts. Basic Concepts Pure resistive load Inductive load Load with an internal DC voltage. TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A A A A A A. Single-phase bridge rectifiers. Idealised circuit with.

456 views • 14 slides

Background

1. Background.

157 views • 10 slides

PU MVA Loose ID if (patJetPfAk05jetpukLoose_->at(pf)!=true) continue;

PU MVA Loose ID if (patJetPfAk05jetpukLoose_->at(pf)!=true) continue;. PU MVA Variable. Before MVA ID cut. After MVA ID cut. Exclusive Jet Multiplicity with Loose MVA ID. # of Event Each Bin. PU MVA Loose < -0.89 if(patJetPfAk05jetpuMVA_->at(pf)<-0.89) continue;. PU MVA Variable.

194 views • 8 slides

LED Lighting Topology in China

LED Lighting Topology in China. AC/DC Power Stage. Constant Current Driver Stage. Outdoor & Infrastructure (>60W): (GB17625.1-1998 for hamonicis) (GB7001-1986 for electric protect) Input: 220Vac(+-10%) Freq.: 50+-0.5HZ PF>=0.95 THD<=20% Eff.>=85%, Target to >90% (ACDC+CC Driver)

150 views • 3 slides

LED Lighting Topology in China

LED Lighting Topology in China. AC/DC Power Stage. Constant Current Driver Stage. Outdoor & Infrastructure (>60W): (GB17625.1-1998 for hamonicis) (GB7001-1986 for electric protect) Input: 220Vac(+-10%) Freq.: 50+-0.5HZ PF>=0.95 THD<=20% Eff.>=85%, Target to >90% (ACDC+CC Driver)

240 views • 3 slides