Family of modular quasi-resonant inverters

A modular quasi-resonant inverter, comprising:

• a first resonant inverter unit including a first terminal, a second terminal, a third terminal, and fourth terminal;
• a second resonant inverter unit including a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal;
• and
• an input capacitor connected between the first terminal and the second terminal
• the first terminal and the fifth terminal being configured such that a first source is connected between the first terminal and the fifth terminal, and
• the second terminal, the fourth terminal, the sixth terminal, and the eighth terminal being configured to be electrically connected to each other,
• the third terminal and the seventh terminal being configured to be electrically connected to each other,
• the first resonant inverter unit and the second resonant inverter unit having an identical circuit structure,
• the first resonant inverter comprising:
• a first switch connected between a first node and a second node;
• a second switch connected between the second node and a third node;
• a third switch connected between the third node and a fourth node;
• a fourth switch connected between the fourth node and a fifth node;
• a first inductor connected between the first terminal and the second node;
• a first auxiliary capacitor and a second inductor connected between the second node and the fourth node;
• a first output capacitor connected between the first node and the third node;
• and
• a second output capacitor connected between the third node and the fifth node,
• the first node being configured to be electrically connected to the second terminal and the fourth terminal, and
• the fifth node being configured to be electrically connected to the third terminal.

A modular quasi-resonant inverter, comprising:

• a first resonant inverter unit including a first terminal, a second terminal, a third terminal, and fourth terminal;
• a second resonant inverter unit including a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal;
• and
• an input capacitor connected between the first terminal and the second terminal,
• the first terminal and the fifth terminal being configured such that a first source is connected between the first terminal and the fifth terminal,
• the third terminal and the fourth terminal being configured such that a second source is connected between the third terminal and the fourth terminal,
• the second terminal, the fourth terminal, the sixth terminal, and the eighth terminal being configured to be electrically connected to each other,
• the first resonant inverter unit and the second resonant inverter unit having an identical circuit structure,
• the first resonant inverter unit comprising:
• a first switch connected between a first node and a second node;
• a second switch connected between the second node and a third node;
• a third switch connected between the third node and a fourth node;
• a fourth switch connected between the fourth node and a fifth node;
• a first inductor connected between the first terminal and the second node;
• a first auxiliary capacitor and a second inductor connected between the second node and the fourth node;
• a first output capacitor connected between the first node and the third node;
• and
• a second output capacitor connected between the third node and the fifth node,
• the first node being configured to be electrically connected to the second terminal and the fourth terminal, and
• the fifth node being configured to be electrically connected to the third terminal.

A modular quasi-resonant inverter, comprising:

• a first resonant inverter unit including a first terminal, a second terminal, a third terminal, and fourth terminal;
• a second resonant inverter unit including a fifth terminal, a sixth terminal, a seventh terminal, and an eighth terminal;
• an input capacitor connected between the first terminal and the second terminal;
• a first source connected between the first terminal and the fifth terminal;
• and
• a second source connected between the third terminal and the fourth terminal,
• the first resonant inverter unit comprising:
• a first switch connected between a first node and a second node;
• a second switch connected between the second node and a third node;
• a third switch connected between the third node and a fourth node;
• a fourth switch connected between the fourth node and a fifth node;
• a first inductor connected between the first terminal and the second node;
• a first auxiliary capacitor and a second inductor connected between the second node and the fourth node;
• a first output capacitor connected between the first node and the third node;
• and
• a second output capacitor connected between the third node and the fifth node,
• the second resonant inverter unit comprising:
• a fifth switch connected between a second unit first node and a second unit second node;
• a sixth switch connected between the second unit second node and a second unit third node;
• a seventh switch connected between the second unit third node and a second unit fourth node;
• an eighth switch connected between the second unit fourth node and a second unit fifth node;
• a third inductor connected between the fifth terminal and the second unit second node;
• a second unit auxiliary capacitor and a fourth inductor connected between the second unit second node and the second unit fourth node;
• a second unit first output capacitor connected between the second unit first node and the second unit third node;
• and
• a second unit second output capacitor connected between the second unit third node and the second unit fifth node,
• the first node being configured to be electrically connected to the second terminal and the fourth terminal,
• the fifth node being configured to be electrically connected to the third terminal,
• the second unit first node being configured to be electrically connected to the sixth terminal and the eighth terminal,
• the second unit fifth node being configured to be electrically connected to the seventh terminal, and
• the second terminal, the fourth terminal, the sixth terminal, and the eighth terminal being configured to be electrically connected to each other.