Be replaced by electric machinery, sensor and driver place gradually as machinist industry system, the machine of such as above is right to machine and person the alternant application of the machine is increasing also. Cumbersome mechanical switch is accused by acute feeling a place replace. A lot of electric machinery application that run below high pressure are increasing also. The semiconductor switch application in high-pressured environment is increasingly general also. They need to undertake corresponding mixing with intelligent controller and driver alternant. The protection that the industry that adds ceaselessly, car, medical treatment and the application of respect leaving a line also need to keep apart a technology to offer, fall a confusion of voices and reliable function support.

 

Isolator is crucial to applying the reliable safety below correctly to operate. For example, isolator can pass those who keep apart high pressure or low-pressure processor to be able to touch circuit prevents people to get an electric shock, for example can the C2000™ small controller of electric machinery of industry of drive high power.

 

Keep apart a solution

 

In a lot of industry application, need with hundreds million taller even data transmits rate efficient between segregation power base, reliable ground transmits data, and prevent high-pressured surge. In addition, the certain segregation in grid driver and industrial sensor application also needs to transmit data and power between power base. The letter number of channels that increases increasingly is measured and ask higher from what spend to channel interval, also promote pair of miniaturization the demand of the solution ceaselessly.

 

The crucial attribute of compositive segregation technology

 

What is segregation after all? Keeping apart power base is medium of a kind of physics, conduce to reliable between two systems ground commutative data and / or power, cut off at the same time redundant electric current. Compositive segregation technology has a few crucial property:

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● isolator is inside short time (surge voltage) or regular job (working voltage) during but susceptive is the biggest voltage.

● isolator falls in the situation that does not produce communication mistake but change of voltage of the biggest ground connection leads susceptive.

● power source cites a base between by segregation power base, direct distance (clearance) be apart from with the surface (leakage of electricity) the delay that cause.

The rate that ● electromagnetism violates.

 

A variety of method implementation keep apart a technology

 

The compositive parts of an apparatus that encloses as chip is increasing, independent capacitor and transformer are replaced, a few kinds of commonly used methods are as follows:

 

Capacitance type: Use multilayer the compositive capacitor of oxidation silicon replaced independent capacitor, the gender is kept apart in what Gao Shuiping can offer when transmitting data through electric field. Our capacitance segregation uses capacitor of two series connection on two chip that the technology is in same module and the platoon places. This kind of method makes we can be transmitted for tall data rate offer those who have competition ability to increase model segregation solution. The data rate on base of capacitance segregation power can exceed every second hundreds of million. The circuit develop that passes a few innovation attacks structure, data rate is OK taller, this has distinct advantage to the application such as industrial aether net. The isolator of our company was used custom-built a series of dominant positions that change CMOS technology, can offer high-powered buildup to keep apart power base.

 

Inductance type: Inductor of a pair of coupling can be used at keeping apart two circuit, exchange data through flux at the same time. Two inductor can embed layer embossing makes circuit board medium or odd piece compositive go up in tubal core. A when inductance keeps apart distinct advantage is the power that can transmit more than hundreds fine long hair to cover with tiles between segregation power base, additional power source need not be provided in complementary face. Besides outside data is transmitted between segregation power base, to realize low input electric current is mixed make sure temperature of highest moving environment is enough tall, it is very important also to a lot of industry application that efficient energy is carried. TI number isolator uses technology of compositive power source, the data that passes innovation and inductor design realized highest energy to transmit efficiency.

 

Capacitance and inductance segregation are mixed with data normally / or power adjustment photograph is united in wedlock. Data adjustment but the danger when utmost ground reduces transient state aiguille to appear as data, conduce to segregation protecting signal and ensure of equipment move smoothly. Power adjustment can optimize power to transmit efficiency.

 

Still can depart through physics two systems use optics or the means of electromagnetic wave communication realizes segregation.

 

Solution of a kind of segregation cannot satisfy all requirement. Below a lot of circumstances, industrial application needs compositive type solution, the link of high speed data that includes to keep apart signal of RS-485 of such as of amplifier, segregation, segregation grid driver. As person and machine increasingly of grow in quantity cooperate in coordination, high pressure keeps apart a solution to be able to ensure more dovish, reliable ground runs the system.