Content limit on the_content that doesn't strip HTML

I’ve seen various ways to do this before, but none seem to accomplish my goal.

I’ve been using wp_trim_words to limit the content, but it strips out html, which I want to keep. For example, if I have bolded text in the first sentence of my content, I want it to remain bolded. Here’s how I’m using the function,

echo wp_trim_words( get_the_content(), 15 );

Is there something I can add to retain html tags?