Driving circuit and printing apparatus

A driving circuit configured to drive a piezoelectric element including a first end and a second end, comprising:

• a power supply including a positive electrode configured to output a positive voltage and a negative electrode configured to output a negative voltage;
• a first switching element and a third switching element including input terminals connected to the positive electrode of the power supply;
• a second switching element and a fourth switching element including input terminals connected to the negative electrode of the power supply;
• a fifth resistor configured to connect an output terminal of the first switching element and an output terminal of the second switching element;
• a sixth resistor configured to connect an output terminal of the third switching element and an output terminal of the fourth switching element;
• a control unit configured to supply a first control signal to a control terminal of the first switching element and a control terminal of the second switching element and supply a second control signal, which is an opposite phase signal of the first control signal, to a control terminal of the third switching element and a control terminal of the fourth switching element, wherein
• in a case where the fifth resistor connects the output terminal of the first switching element and the first end of the piezoelectric element, the sixth resistor connects the output terminal of the third switching element and the second end of the piezoelectric element, and
• in a case where the fifth resistor connects the first end of the piezoelectric element and the output terminal of the second switching element, the sixth resistor connects the second end of the piezoelectric element and the output terminal of the fourth switching element.

A printing apparatus, comprising:

• a driving circuit configured to drive a piezoelectric element including a first end and a second end, the driving circuit including:
• a power supply including a positive electrode configured to output a positive voltage and a negative electrode configured to output a negative voltage;
• a first switching element and a third switching element including input terminals connected to the positive electrode of the power supply;
• a second switching element and a fourth switching element including input terminals connected to the negative electrode of the power supply;
• a first resistor configured to connect an output terminal of the first switching element and the first end of the piezoelectric element;
• a second resistor configured to connect the first end of the piezoelectric element and an output terminal of the second switching element;
• a third resistor configured to connect an output terminal of the third switching element and the second end of the piezoelectric element;
• a fourth resistor configured to connect the second end of the piezoelectric element and an output terminal of the fourth switching element;
• and
• a control unit configured to supply a first control signal to a control terminal of the first switching element and a control terminal of the second switching element and supply a second control signal, which is an opposite phase signal of the first control signal, to a control terminal of the third switching element and a control terminal of the fourth switching element.