填空题 Allow pin-out for open end winding; allow area on PWB for RC damper which may be put across open winding. 允許在遮罩繞組上使用銷釘；允許在PWB上為RC阻尼器留出可穿過遮罩繞組的區域。

填空题 If use 431 as reference, a ( ) should be parallel with its AK pins for good stability. 如果使用431做参考电压，需要加( )电容在AK脚之间，加强可靠性。

填空题 It should be add location of ( ) circuit,and the power of ( ) resistance should be enough to meet the requirements of PD discharge test. PD电源輸出有加( )回路位置，( )電阻功率需要足夠，滿足PD放電測試要求。

填空题 Zero ohm ( ) are added in the schematic to ensure connection of control circuit to power circuit at appropriate point. 在原理圖中增加了零歐姆( )，以確保控制電路在適當的點與電源電路連接。

填空题 If the output power is more than 60W (20V/3A), need ( ) to power E_mark. It is necessary to confirm whether the protocol IC supports it. If the output is wired and without PD certification, it is not necessary. 輸出功率>60W(20V/3A)需要支援( )，給E mark供電，要確認協議IC是否支持，如果輸出是帶線且不用PD認證則不用。

填空题 Do not use zener in secondary output as ( ) to avoid zener short circuit and overheat. In case needed, zener should be added with ( ) in series. 次級輸出不要用穩壓管作為( )，以免穩壓管短路和過熱。 如有需要，穩壓管應串聯( )。

填空题 No possibility of op-amp or comparator input pin going below -ve or above ( )V. 運放或者比較器的輸入Pin不能小於-Ve或者大於( )V。

填空题 Add ( ) for all signal line inputs to avoid no current limit when connecting system which lead to component failure owing to system malfunction. 為所有信號線輸入增加( )，以避免在連接系統時無電流限制，導致系統故障而導致部件故障。

填空题 If the working mode of secondary synchronous rectification is v * s equilibrium, it is necessary to evaluate adding ( ) to synchronous MOS. 次極同步整流的工作方式如果是用伏秒積平衡方法，需要評估在同步Mos加( )。