Frequency conversion air conditioning variable frequency drive process

Air conditioning work, machine outside the CPU output frequency conversion control signals. In part of the process of frequency conversion output for introduction object, such as u, y, z three signals arrive at the same time, by plug CN1 access frequency conversion power diaphragm. Glowing light lotus root IC2, IC6, IC7 working at the same electric vehicle motor time. Light lotus root IC2 triode conduction, form a trigger signal uU, add to figure 7 uU work side, the upper arm tube conduction of U. Light lotus root IC6, IC7 conduction, form a trigger signal yN, zinc, and add to figure 7 yN, zinc, V, W phase under the arm two power tube conduction. Three ac motor power tube conduction, the PN dc electric fan motor power through the compressor UV, UW winding current formation, the electric compressor. 2 L1 c3 O1 I2 h8 N.C PU output "three phase six take" trigger signal, the power tube conduction in turn, can be formed in the compressor of the three-phase winding three-phase alternating current, www.dongfeng-motor.com compressor operation.