Switched-capacitor regulators

A switched capacitor regulator for regulating output voltage comprising:

• a supply input terminal capable of receiving a supply voltage, and
• two or more flying capacitors, with a regulation switch located between each flying capacitor and the supply input terminal;
• a voltage control circuit comprising a feedback resistance area comprising one or more feedback resistors located between the output of the flying capacitors and a ground terminal, a first gain stage connected to the feedback resistance area, and two or more second switchable gain stages, each connected to a regulation switch and the first gain stage,
• wherein the activity of the regulation switches is controlled by the voltage control circuit.

A switched-capacitor regulator configured for providing a regulated output voltage, said switched-capacitor regulator comprising:

• a supply input terminal for receiving a supply voltage,
• a voltage control circuit configured for regulation of said output voltage,
• two flying capacitors, each of said flying capacitors charging and discharging alternately in every half-clock period,
• two regulation switches, each of said regulation switches coupled between the supply input terminal and one terminal of a flying capacitor,
• each of said regulation switches controlled by the voltage control circuit,
• an output load circuit comprising a load capacitor and a load device, said output load circuit configured for maintaining a voltage charge on said load device,
• two feedback resistors connected in series, coupled between the output of said switched-capacitor regulator and ground terminal;
• wherein the discharging phase occurs when one flying capacitor is coupled between regulation switch and said output load circuit, and said charging phase occurs when said flying capacitor is disconnected from said output load circuit and is charged by said supply input terminal.