The original circuit is in accordance with the 20K switching frequency design inductance, and now the switching frequency to 10K, do not know if this will be any problem? Inductance in the output of relatively large power, there will be buzzing sound, what is the reason?
Generally do not put the frequency of work can be heard on the frequency, that interference will be very painful!
The The child's hearing limit is higher! You will change the transformer and so on. If it is home, there is a child to be careful! Will harm the child health!
If the circuit is in the current mode, the output power will be insufficient and the output ripple will increase. Not the current mode, it may make the switch tube current is too large and the core saturation, this is very dangerous. There is a buzz is the core loose (such as the transformer did not dip qi, power will be a little shock). 20K switching frequency work is not it? Why do you want to change to 10KHZ?
