Hi everyone!
I'm designing a boost converter with the LM5000, but I'm facing some troubleshootings.
Firts, some informations about the circuit:
- I designed the circuit using WEBENCH;
- The input varies between 18V and 30V (hardly reaches 30V);
- The output must be 30V (or a max of 32V).
I'm testing the circuit using a PCB. However, the circuit do not works as intended. The output follows the input instead of stay in 30V. For example, if the input is 20V, the output is 20V instead of 30V.
I've already changed the components and tested them on other PCBs.
Any help will be welcome.
Below, the circuit designed. Note that are some diferences between the circuit designed with WEBENCH and the circuit that was actually implemented. This occurs due to availability of components.