自驱动方式是最简单的同步整流

0201封装 SLP0603 ESD静电二极管 5V 单向ESD

自驱动方式是最简单的同步整流驱动方式。图示于图1中。两个二极管DF及DR由MOSFET QF及QR取代。在自驱动技术中，变压器二次侧电压用于驱动同步整流元件QF及QR的栅极。在图1中，虽然没有展示出，但在变压器的二次侧可以用独立的绕组去驱动正向同步整流的QF或回流的同步整流的QR，这可通常用与初级绕组的不同匝数比的绕组做为栅驱动绕组。这种方法适用于输出电压更高的场合。

图1 自驱动同步整流

Magnetic Buzzer Self-drive Type

The magnetic buzzers (Self-drive Type) offer optimal sound and performance for all types of audible alert and identification. Our magnetic Buzzer solutions are offered with various mounting options. We also provide you with a washable version for your preferred soldering method. Our magnetic buzzers, also known as indicators, are designed with an internal drive circuit for easy application integration. During operation, current is driven through a voice coil to produce a magnetic field. When a voltage is applied, the coil generates a magnetic field and then allows the diaphragm to vibrate and produce sound. This buzzer type has a low operating voltage ranging from 1.5 – 12V+. Our magnetic buzzers are desirable for applications requiring a lower sound pressure level (SPL) and frequency.

Passive Buzzer,Dc Magnetic Buzzer,Electro Magnetic Buzzer,Magnetic Buzzer Self Drive Type

Jiangsu Huawha Electronices Co.,Ltd , https://www.hnbuzzer.com