我用TPA3116D2做成单声道模式,SDZ和FAULTZ接在一起,量电压为0V,把输出的LC滤波电路的电1uF开路,SDZ电压为20V。电源电压23.7V。把与SDZ的限流电阻100K改成10K电压为23.7V,增益36dB 请问怎么会保护。图片是不接电感的波形
user151383853:
The TPA31xxD2 family can be connected in MONO mode enabling up to 100W output power. This is done by:• Connect INPL and INNL directly to Ground (without capacitors) this sets the device in Mono mode during power up.• Connect OUTPR and OUTNR together for the positive speaker terminal and OUTNL and OUTPL together for the negative pin.• Analog input signal is applied to INPR and INNR.
zhcaeg:
回复 user151383853:
保护问题找到原因了,是输出的电容220nF有问题,换了就可以了,是元件质量问题,但是还有个问题,接上LC发热很厉害,输出功率没有不接LC的大。电感是uH,电容是1uF.
zhcaeg:
回复 zhcaeg:
还有音量开大了,低频好像咔咔的响,不是那种破音的效果,