1. A solid state power controller comprising:
a plurality of pairs of FETs connected in parallel, each pair comprising a first, forward-facing FET and a second, backward-facing FET connected by their respective sources;
gate drive means for switching said FETs on and off; and
means for isolating the sources of the backwards-facing FETs of the plurality of pairs of FETs from each other and operating the backwards-facing FETs in 3rd quadrant operation mode.
2. The solid state power controller of claim 1 wherein pairs of FETs are connected via the drains of the FETs of the respective pairs.
3. The solid state power controller of claim 1, whereby the means for isolating the sources comprises a resistor between sources of respective FETs and the date drive means.
4. The solid state power controller of claim 1, comprising an operational amplifier for controlling an onoff status of the FETs and for controlling the clamping voltage.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An article of manufacture comprising:
a. an isotactic polymer;
b. a cross-linking agent, wherein the cross-linking agent comprises a peroxide and a sulfur, wherein the peroxide comprises an activity ranging from about 40% to about 100%; and
c. an accelerator, wherein the ratio of the accelerator to the sulfur ranges from about 1:4 to about 1:10 depending on the activity, and wherein the ratio of the accelerator to the peroxide ranges from about 1:4 to about 1:10 depending on the activity,
wherein the article is formed by mixing polymer, the cross-linking agent, and the accelerator at high shear rates forming a blend, heating and extruding the blend at a temperature less than 140 degrees Celsius for less than one minute; and inserting the blend into a molding, wherein the article comprises a resilience value up to about 50 KJm2.
2. The article of claim 1, wherein the article is selected from the group consisting of a bottle, a toy, a water tank, a fuel storage tank, a septic tank, hot water pipe, fibers, netting, packaging insulators, and the like.
3. The article of claim I, wherein the article is selected from the group consisting of a film, a bag, an extrusion sheeting, a truck bedliner, a geo-membrane, ice skating rink liner, and the like.
4. The article of claim 1, wherein the article is inserted into the molding by blow molding, rotating molding, or by injection molding.
5. The article of claim 1, wherein the isotactic polymer is selected from the group consisting of isotactic polypropylene homopolymer; isotactic polypropylene copolymer; mixtures of isotactic polypropylene homopolymer with an elastomer; mixtures of isotactic polypropylene homopolymer with thermoplastic-based mixes; mixtures of isotactic polypropylene copolymer with an elastomer; mixtures of isotactic polypropylene copolymer with thermoplastic-based mixes; and combinations thereof.
6. The article of claim 5, wherein the homopolymer and copolymers are granular, recycled, restored, or combinations thereof.
7. The article of claim 1, further comprising an ultra-violet stabilizer.
8. The article of claim 7, wherein the ultra-violet stabilizer is maleic anhydride.
9. The article of claim 1, further comprising an elastomer, a thermoplastic mix, or combinations thereof.
10. The article of claim 1, further comprising a component selected from the group consisting of an odor controlling additive, an antioxidant, a filler, and combinations thereof.
11. The article of claim 10, wherein the filler is talc.
12. The article of claim 10, wherein the odor controlling additive is potassium persulfate.
13. The article of claim 1, further comprising vegetable oil.
14. The article of claim 13, wherein the amount of vegetable oil ranges from 0.01% to 1% of recycled isotactic polymer.
15. The article of claim 1, wherein the sulfur is selected from the group consisting of a compound comprising a sulfur atom S1, a polysulphide Sx, a sulfur cyclic compound, and combinations thereof.
16. The article of claim 1, wherein the ratio of the accelerator to the sulfur is 1:8.