Preferably, the inverterunit further comprises a conductive plate (50) that covers the control board (17) and is electrically connected to the conductive pattern (92).
逆变器单元 优选还包括覆盖控制基板（17）并与导电图案（92）电连接的导电板 （50）。
2
Only one input of the digital circuit unit is the buffer or inverter, the input in more than one are called logic gates.
只有一个输入的数字电路单元是缓冲器或反相器，而输入在一个以上的则称为逻辑门。
3
This article introduces the application of CONVO inverter in the centrifugal equipment, also application the brake unit in this equipment.