DVM modules also have low partscount, and you can implement them using off-the-shelf components.
DVM模块使用器件少，可使用有现货供应的器件实现。
2
Simplicity is of the essence since the low partscount implementation is invariably cheaper and more reliable.
简单极为重要，因为用较少元器件实现（的电路）肯定更便宜也更可靠。
3
But, despite its merits, the traditional single-ended forward converter has some shortcomings, such as simple circuit, low partscount, low output ripple, etc, it also has some shortcomings.