1 . MOS control thyristor ( MCT )
MOS MCT appeared in the 1980s, he began to develop rapidly, but its structure and manufacturing process more complicated, the yield is not high, because these key technical problems have not been solved, the current MCT failed to put into practical use. MCT is similar to IGBT . It is a composite high-power device that combines the high input impedance of P-MOSFET , low driving power and fast switching speed with the high voltage, high current and low conduction voltage drop of thyristors. stand up. Its equivalent circuit and symbol are shown in Figure 1 .
2 . Integrated gate commutated thyristor ( IGCT )
Integrated gate-commutated thyristor (IGCT) in the 1990s began to appear. The structure of the IGCT is to integrate the GTO chip with the anti-parallel diode and the gate drive circuit, and then connect the gate driver to the ring-shaped gate electrode with low inductance externally. IGCT features high current, high voltage, high switching frequency ( 10 times higher than GTO ), compact structure, good reliability, low loss, and high manufacturing yield. At present, IGCT has been applied in the power system, and it is possible to replace the GTO application in high-power applications in the future.
a MCT b 1 MCT equivalent circuit and symbol
Reasons to mine Zcash
Zcash is easily traded for bitcoins (BTC), so it can be a cheap way to slowly build up a holding position in Bitcoin.
Since BTC can easily be exchanged for cash, mining ZEC can be a good way to indirectly fill your bank account or earn cash. ZEC can also be sold directly on some major exchanges.
Mining can be a cheap entry ticket to the Zcash markets, which are loved by traders for their high volatility. If you`re a good and/or lucky trader, you can maximize your profits.</li>
Ever since ZEC hit the market, it`s been one of the highest-priced altcoins on the market, peaking at over $400 in June 2017.
Mining can be a great way to subsidize the purchase of a new high-end GPU (or two, or three-).
Finally, building a large ZEC position through mining now may allow you to take advantage of price appreciation in the future with less risk than you`d face by just buying ZEC.
Let`s break this last idea down a bit further.
Mining and holding crypto is similar to the old adage of buying low and selling high. However most buyers don`t know how to do technical analysis, so they buy and sell at the wrong times.
They buy high during parabolic price increases and sell low during what could be normal price corrections on continued upward trends
Buying gear and mining cryptocurrency with it allows you to own an income-producing asset in the gear itself, with aftermarket resale value holding up very well.
Allowing your gear to earn money and selling that gear when you reach your target can allow you to make nearly all your money back on the gear and pocket the crypto generated as profit.
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