Boost-buck DC-DC converter

A DC-DC converter operating in at least one of a first mode and a second mode, the DC-DC converter comprising:

• a voltage source connected to an input switch formed by a first transistor, through an inductive element such that a closed loop is formed;
• a switching network comprising:
• a second transistor having a source terminal connected to the inductive element and the input switch, a drain terminal connected to a first capacitor, and a gate terminal receiving a second clock signal when the DC-DC converter operates in the first mode, wherein the second transistor operates in ON state when the DC-DC converter operates in the second mode;
• a third transistor having a source terminal connected to the drain terminal of the second transistor, a gate terminal receiving an inverted second clock signal when the DC-DC converter operates in the first mode, the gate terminal receiving a first clock signal when the DC-DC converter operates in the second mode;
• a fourth transistor having a source terminal connected to a ground terminal, and a drain terminal connected to a drain terminal of the third transistor, a gate terminal receiving a first clock signal when the DC-DC converter operates in the second mode, wherein the fourth transistor operates in OFF state when the DC-DC converter operates in the first mode;
• a fifth transistor having a source terminal connected to the source terminal of the second transistor, a drain terminal connected to a second capacitor, a gate terminal receiving a third clock signal when the DC-DC converter operates in the first mode, wherein the fifth transistor operates in ON state when the DC-DC converter operates in the second mode;
• a sixth transistor having a source terminal connected to the drain terminal of the fifth transistor, a drain terminal connected to the drain terminal of the fourth transistor, and a gate terminal receiving an inverted third clock signal when the DC-DC converter operates in the first mode, wherein the gate terminal receives the first clock signal when the DC-DC converter operates in the second mode;
• and
• a seventh transistor having a drain terminal connected to the drain terminal of the sixth transistor, a source terminal connected to the ground terminal, and a gate terminal receiving the first clock signal when the DC-DC converter operates in the second mode, wherein the seventh transistor operates in OFF state when the DC-DC converter operates in the first mode;
• wherein the first capacitor and the second capacitor are charged alternately based on the second clock signal and the third clock signal when the DC-DC converter operates in the first mode;
• and
• a filter connected to the drain terminal of the sixth transistor, wherein the first capacitor and the second capacitor discharge through the filter alternately based on the inverted second clock signal and the inverted third clock signal.

An electronic circuit comprising:

• a DC-DC converter comprising:
• a battery connected to an input switch through an inductive element such that a closed loop is formed;
• a switching network receiving one or more clock signals from an external clock source, the switching network having a first terminal connected to the inductive element and a second terminal connected to a first capacitor, wherein the switching network enables charging of the first capacitor based on the one or more clock signals;
• and
• a filter connected to a fourth terminal of the switching network, wherein the first capacitor discharges based on the one or more clock signals through the filter, and
• a power amplifier connected at the output of the filter.