Seeming contradiction between these two phenomena--the similarity of the anti-parallel
sequences obtained at successive equinoxes, and the mirror similarity of two halves of each histogram sequence (the "palindrome effect")--is, probably, resolved by the fact that these two kinds of symmetry are determined by different, not overlapping sets of similar histograms;
It states that two electrons (or other fermions) cannot have the same spatial wave function unless the spins are anti-parallel
(up arrow down arrow) i.
For normally incident light, these respective directions are parallel and anti-parallel
to the unit vector n = (0,0,1) in the direction of the positive z-axis, and the final expression for the time-averaged zPoynting vector (A7c) is
2kV IGBT module in phase leg topology including anti-parallel
The APT40GR120B2D30 is a T-MAX packaged device that includes a 30A anti-parallel
, ultrafast recovery diode built with Microsemi's proprietary "DQ" generation of low switching loss, avalanche energy rated diode technology.
Inverter Stage (Dual IGBT in half bridge topology with anti-parallel
The STGY40NC60VD is a similar part, co-packaged in a Max247 package with an anti-parallel
IXYS offers flexible SMPD in various topologies including the IXA68PF650LB which is an example of a dual IGBT of 68A, 1200V including anti-parallel
diodes, DMA90U1800LB, an example of a three phase diode rectifier providing 99A of DC current at a case temperature of 90 Deg C with 1800V blocking voltage.
Target applications for the 300V devices are for output rectifiers and power factor correction in power supplies, and for the 1200V devices as anti-parallel
diodes for high frequency inverters and snubber diodes for high current IGBT inverters.
The new 1200V XPT devices are available with IXYS' Sonic-FRDTM anti-parallel
ultra-fast diodes (Sonic-FRDTM - Suffix H1, ie.
These new Zero Recovery(TM) 1200 Volt, 5 & 10 Amp SiC Schottky rectifiers are targeted for applications such as the anti-parallel
diode for high frequency inverters, snubber diodes for high current IGBT inverters, the boost diode for 480V input Power Factor Correction (PFC), and high voltage multipliers.
These devices are ideal as boost diodes and anti-parallel
diodes in solar inverters and 3-phase motor drive circuits, as well as in power factor correction (PFC) boost circuits in power supplies and UPS equipment.