Patent ID: 8212537

Claim:
A voltage converter circuit comprising: a supply node receiving a supply voltage; a ground node receiving a ground voltage; a supply switching element including a first supply terminal, a second supply terminal and a supply control terminal, the first supply terminal electrically connected to the supply node and the supply control terminal receiving a first control signal, the supply control terminal controlling the resistance between the first supply terminal and the second supply terminal; a top switching element including a first top terminal, a second top terminal and a top control terminal, the first top terminal electrically connected to the second supply terminal, the top control terminal receiving a second control signal, the top control terminal controlling the resistance between the first top terminal and the second top terminal; a bottom switching element including a first bottom terminal, a second bottom terminal and a bottom control terminal, the first bottom terminal electrically connected to the second top terminal, the bottom control terminal receiving a third control signal, the bottom control terminal controlling the resistance between the first bottom terminal and the second bottom terminal; a ground switching element including a first ground terminal, a second ground terminal and a ground control terminal, the first ground terminal electrically connected to the second bottom terminal, the second ground terminal electrically connected to the ground node, the ground control terminal receiving a fourth control signal, the ground control terminal controlling the resistance between the first ground terminal and the second ground terminal; an output node substantially adjustable between the supply voltage and the ground voltage, the voltage at the output node controlled by application of the first, second, third and fourth control signals; a switching capacitor including a first switching capacitor terminal and a second switching capacitor terminal, the first switching capacitor terminal electrically connected to the second source terminal and the first top terminal, the second switching capacitor terminal electrically connected to the second bottom terminal and the first ground terminal; an inductor including a first inductor terminal and a second inductor terminal, the first inductor terminal electrically connected to the second top terminal and the first bottom terminal, the second inductor terminal electrically connected to the output node; and a load capacitor including a first load capacitor terminal and a second load capacitor terminal, the first load capacitor terminal electrically connected to the second inductor terminal and the output node, the second load capacitor terminal connected to the ground node.