Part Number: DP83TD510E
Hello, I would like to inquire about a question regarding DP83TD510E. I am currently designing a repeater that does not require an MCU and uses pure hardware. I aim to achieve back-to-back connection. The conceptual diagram is…
Other Parts Discussed in Thread: TPS23751 , TPS23754 , TPS23753 目前用TPS23751制作的POE电源PD模块,调试阶段,未接入PSE调试,直接从整流桥后面VDD接入48VDC调试DC-DC功能。目前设置的12V out,但输出有27V(带负载20mA),看pin5(RT)波形不正常在,是70HZ的矩形波;观察pin13(GATE)在矩形波的高处有输出;
请问,这个状况是什么问题,电路图如附件。期望得到回复。谢谢
Other Parts Discussed in Thread: UCC37324 总原理图.pdf
我设计了600W的移相全桥DCDC变换器,控制芯片是3895,驱动芯片用的UCC37324,经测试37324的输出侧PWM波没有问,但是经过隔离脉冲变压器后的PWM输出有问题,输出到MOS管的VGS有正电压,有负电压 ,总原图已经给出,并且测试变压器的原边没有电压,说明MOS管没有工作。
Other Parts Discussed in Thread: UCC28704 , UCC28700 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/746352/ucc28742-simple-regulation-of-auxiliary-winding…