Gate driver bootstrap circuits and related methods are disclosed. An example gate driver stage includes a first terminal and a second terminal, the first terminal to be coupled to a capacitor, the capacitor and the second terminal to be coupled to a gate terminal of a power transistor, a gate driver coupled to the first terminal and the second terminal, and a bootstrap circuit coupled to the first terminal, the second terminal, and the gate driver, the bootstrap circuit including a control stage circuit having an output and a first transistor having a first gate terminal and a first current terminal, the first gate terminal coupled to the output, the first current terminal coupled to the first terminal.