Lossless power conversion to DC method and device

A method of energy transfer between a storage capacitor and a voltage source, the method comprising at least one of:

• a charging mode, comprising, while a modulus of a voltage across the storage capacitor being less than a modulus of a nominal voltage, cycling through:
• (a) making a first loop comprising a dosing coil, a dosing capacitor, and an input terminal pair connected to the voltage source, wherein the dosing coil, the dosing capacitor, and the input terminal pair are connected in series with each other;
• (b) detecting a condition of a current in the dosing coil becoming non-zero;
• (c) detecting a condition of the current in the dosing coil becoming substantially zero, thereupon breaking the first loop;
• (d) making a second loop comprising the dosing capacitor and a raising coil;
• (e) detecting a condition of a voltage across the dosing capacitor becoming substantially zero, thereupon making a third loop comprising the raising coil and a raising capacitor and breaking the second loop;
• (f) detecting a condition of the nominal voltage and a voltage across the raising capacitor having a same polarity and a current in the raising coil becoming substantially zero, thereupon breaking the third loop;
• (g) making a fourth loop comprising the raising capacitor, a replenishing coil, and the storage capacitor, wherein the raising capacitor, the replenishing coil, and the storage capacitor are connected in series with each other;
• (h) detecting a condition of the voltage across the raising capacitor becoming substantially zero, thereupon making a fifth loop comprising the replenishing coil and the storage capacitor and breaking the fourth loop;
• and
• (i) detecting a condition of a current in the replenishing coil becoming substantially zero, thereupon breaking the fifth loop;
• and
• an uncharging mode, comprising:
• (j) making a fifth loop comprising a replenishing coil and the storage capacitor;
• (k) then detecting a condition of a voltage across the storage capacitor becoming substantially zero, thereupon making a fourth loop comprising a raising capacitor, the replenishing coil, and the storage capacitor, wherein the raising capacitor, the replenishing coil, and the storage capacitor are connected in series with each other, and breaking the fifth loop;
• (l) then detecting a condition of a current in the replenishing coil becoming substantially zero, thereupon breaking the fourth loop;
• (m) then making a third loop comprising a raising coil and the raising capacitor;
• (n) then detecting a condition of a voltage across the raising capacitor becoming substantially zero, thereupon making a second loop comprising a dosing capacitor and the raising coil and breaking the third loop;
• (o) then detecting a condition of a current in the raising coil becoming substantially zero and an input voltage across an input terminal pair connected to the voltage source and a voltage across the dosing capacitor having a same polarity, thereupon breaking the second loop;
• (p) then making a first loop comprising a dosing coil, the dosing capacitor, and the input terminal pair, wherein the dosing coil, the dosing capacitor, and the input terminal pair are connected in series with each other;
• (q) then detecting a condition of the voltage across the dosing capacitor becoming substantially zero, thereupon shorting the dosing capacitor;
• and
• (r) then detecting a condition of a current in the dosing coil becoming substantially zero, thereupon breaking the first loop.

A device for energy transfer between a storage capacitor and a voltage source, the device comprising:

• a dosing coil;
• a dosing capacitor;
• a replenishing coil;
• an input terminal pair for connection to the voltage source;
• a plurality of switches;
• and
• a controller;
• wherein:
• (a) the plurality of switches are coupled to the input terminal pair, the dosing capacitor, the storage capacitor, the dosing coil, and the replenishing coil and are configured to make and to break:
• a first loop comprising the input terminal pair, the dosing coil, and the dosing capacitor, wherein the input terminal pair, the dosing coil, and the dosing capacitor are connected in series with each other;
• a second loop comprising the dosing capacitor, the replenishing coil, and the storage capacitor, wherein the dosing capacitor, the replenishing coil, and the storage capacitor are connected in series with each other;
• and
• a third loop comprising the replenishing coil and the storage capacitor;
• (b) the controller is coupled to said first, second, and third loops and is configured to detect:
• a first condition of a current in the dosing coil becoming non-zero;
• a second condition of the current in the dosing coil becoming substantially zero;
• a third condition of a voltage across the dosing capacitor becoming substantially zero;
• a fourth condition of a current in the replenishing coil becoming substantially zero;
• and
• a fifth condition of a modulus of a voltage across the storage capacitor being less than a modulus of a nominal voltage;
• and
• (c) the controller is operably coupled to the plurality of switches and configured to control said plurality of switches according to said first, second, third, fourth, and fifth conditions.

A device for energy transfer between a storage capacitor and a voltage source, the device comprising:

• a dosing coil;
• a dosing capacitor;
• a raising coil;
• a raising capacitor;
• a replenishing coil;
• an input terminal pair for connection to the voltage source;
• a plurality of switches;
• and
• a controller:
• wherein:
• (a) the plurality of switches are coupled to the input terminal pair, the dosing capacitor, the raising capacitor, the storage capacitor, the dosing coil, the raising coil, and the replenishing coil and are configured to make and to break:
• a first loop comprising the input terminal pair, the dosing coil, and the dosing capacitor, wherein the input terminal pair, the dosing coil, and the dosing capacitor are connected in series with each other;
• a second loop comprising the dosing capacitor and the raising coil;
• a third loop comprising the raising coil and the raising capacitor;
• a fourth loop comprising the raising capacitor, the replenishing coil, and the storage capacitor, wherein the raising capacitor, the replenishing coil, and the storage capacitor are connected in series with each other;
• and
• a fifth loop comprising the replenishing coil and the storage capacitor;
• (b) the controller is coupled to said first, second, third, fourth, and fifth loops and is configured to detect:
• a first condition of a current in the dosing coil becoming non-zero;
• a second condition of the current in the dosing coil becoming substantially zero;
• a third condition of a voltage across the dosing capacitor becoming substantially zero:
• a fourth condition of a current in the raising coil becoming substantially zero;
• a fifth condition of a voltage across the raising capacitor becoming substantially zero;
• a sixth condition of a polarity of the voltage across the raising capacitor being opposite to a polarity of a nominal voltage;
• a seventh condition of a current in the replenishing coil becoming substantially zero;
• and
• an eighth condition of a modulus of a voltage across the storage capacitor being less than a modulus of the nominal voltage;
• and
• (c) the controller is operably coupled to the plurality of switches, and configured to control said plurality of switches according to said first, second, third, fourth, fifth, sixth, seventh, and eighth conditions.