In the synchronous " model , based on the idea of polygonal flux linkage locus , by means of constructing the switch state period table of three phrase voltage inverter is required . in the brushless model , the igbt ( isolated gate bipolar transistor ) switch state period table is gained by gal ( generic array logic ) which analyzes the signal of position feed - back 在同步方式下,基于多边形磁链轨迹法的思想,用作图法求得三相电压型逆变器的pwm波形序列;在无刷直流方式下,用gal对位置反馈信号进行逻辑综合,得到开关管的导通规律。
The Generic Array Logic (also known as GAL) device was an innovation of the PAL and was invented by Lattice Semiconductor. The GAL was an improvement on the PAL because one device was able to take the place of many PAL devices or could even have functionality not covered by the original range.
generic array logic meaning:[Computer] < hardware , integrated circuit > (GAL) A newer kind of Programmable Array Logic based on EEPROM storage cells, been pioneered by Lattice . GALs can be erased and reprogramme...generic array logic 뜻:일반 어레이 논리