DC voltage boost can be achieved with a boost type DC-DC chip or a boost type charge pump chip, and PWM (pulse width modulation) or PFM (frequency modulation) chip can also be used to form a DC boost circuit, but it is slightly more difficult, in fact, off-the-shelf DC-DC chip is also based on the principle of PWM or PFM.
DC voltage boost can be achieved with a boost type DC-DC chip or a boost type charge pump chip, and PWM (pulse width modulation) or PFM (frequency modulation) chip can also be used to form a DC boost circuit, but it is slightly more difficult, in fact, off-the-shelf DC-DC chip is also based on the principle of PWM or PFM.