Patent ID: 11869399
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A driving circuit comprising:
a first input signal terminal and a second input signal terminal;
a first output signal terminal and a second output signal terminal;
a current source that supplies a constant current;
a first transistor including a first control terminal connected to the first input signal terminal, a first outflow terminal connected to a ground line via the current source, and a first inflow terminal;
a second transistor including a second control terminal connected to the second input signal terminal, a second outflow terminal connected to the ground line via the current source, and a second inflow terminal;
a third transistor including a third control terminal to which a first bias voltage is to be applied, a third outflow terminal connected to the first inflow terminal, and a third inflow terminal;
a fourth transistor including a fourth control terminal to which the first bias voltage is to be applied, a fourth outflow terminal connected to the second inflow terminal, and a fourth inflow terminal;
a first inductor and a second inductor each having a first inductance;
a third inductor and a fourth inductor each having a second inductance that is larger than the first inductance;
a fifth transistor including a fifth control terminal to which a second bias voltage is to be applied, a fifth outflow terminal connected to the third inflow terminal via the first inductor, and a fifth inflow terminal connected to the first output signal terminal via the third inductor; and
a sixth transistor including a sixth control terminal to which the second bias voltage is to be applied, a sixth outflow terminal connected to the fourth inflow terminal via the second inductor, and a sixth inflow terminal connected to the second output signal terminal via the fourth inductor, wherein
as the first bias voltage, a direct-current voltage is applied to each of the third control terminal and the fourth control terminal, and
as the second bias voltage, a voltage signal that changes in accordance with a voltage of the fifth inflow terminal is applied to the fifth control terminal and a voltage signal that changes in accordance with a voltage of the sixth inflow terminal is applied to the sixth control terminal.