Semiconductor device and inverter system

An inverter system comprising:

• an inverter circuit including a power semiconductor element;
• a first semiconductor chip;
• a second semiconductor chip;
• and
• a third semiconductor chip,
• wherein one of the first semiconductor chip and the second semiconductor chip includes a first switch,
• wherein the other of the first semiconductor chip and the second semiconductor chip includes a second switch,
• wherein the second semiconductor chip is electrically connected to the inverter circuit,
• wherein the third semiconductor chip includes a first transformer,
• wherein a signal is transmitted from the first semiconductor chip to the second semiconductor chip by the first transformer when the first switch is turned off while the second switch is turned on, and
• wherein a signal is transmitted from the second semiconductor chip to the first semiconductor chip by the first transformer when the second switch is turned off while the first switch is turned on