Power supply circuit

A power supply circuit comprising:

• a control circuit comprising:
• a detection circuit including a first reference voltage generation circuit, a second reference voltage generation circuit, and an input signal adjustment circuit;
• an error amplifier circuit;
• a pulse width modulation driver;
• a triangle-wave generation circuit;
• and
• a capacitor,
• an amplifier circuit electrically connected to the control circuit that outputs an output voltage;
• and
• a divider circuit that is electrically connected to the control circuit and the amplifier circuit and inputs a voltage obtained by dividing the output voltage as a feedback voltage to the second reference voltage generation circuit,
• wherein the first reference voltage generation circuit and the second reference voltage generation circuit are each a reference voltage circuit comprising a diode and a resistor.

A power supply circuit comprising:

• a control circuit comprising:
• a detection circuit including a first reference voltage generation circuit, a second reference voltage generation circuit, and an input signal adjustment circuit;
• an error amplifier circuit;
• a pulse width modulation driver;
• a triangle-wave generation circuit;
• and
• a capacitor,
• an amplifier circuit electrically connected to the control circuit that outputs an output voltage;
• and
• a divider circuit that is electrically connected to the control circuit and the amplifier circuit and inputs a voltage obtained by dividing the output voltage as a feedback voltage to the second reference voltage generation circuit,
• wherein the input signal adjustment circuit comprising an operational amplifier, two resistors each having a first resistance value, and two resistors each having a second resistance value, and
• wherein the first reference voltage generation circuit and the second reference voltage generation circuit are each a reference voltage circuit.

A power supply circuit comprising:

• a control circuit comprising:
• a detection circuit including a first reference voltage generation circuit, a second reference voltage generation circuit, and an input signal adjustment circuit;
• an error amplifier circuit;
• a pulse width modulation driver;
• a triangle-wave generation circuit;
• and
• a capacitor,
• an amplifier circuit electrically connected to the control circuit that outputs an output voltage;
• and
• a divider circuit that is electrically connected to the control circuit and the amplifier circuit and inputs a voltage obtained by dividing the output voltage as a feedback voltage to the second reference voltage generation circuit,
• wherein the input signal adjustment circuit comprising an operational amplifier, two resistors each having a first resistance value, and two resistors each having a second resistance value, and
• wherein the first reference voltage generation circuit and the second reference voltage generation circuit are each a reference voltage circuit comprising a diode and a resistor.