Voltage generation circuit which is capable of executing high-speed boost operation

1. A voltage generation circuit comprising:

a first boost circuit configured to output a first voltage;

a voltage division circuit configured to divide the first voltage;

a first detection circuit having a first input terminal connected to the voltage division circuit, the first detection circuit being configured to detect a first monitor voltage supplied to the first input terminal, based on a reference voltage which is supplied to a second input terminal of the first detection circuit, and to control an operation of the first boost circuit;

a capacitor connected between an output terminal of the first boost circuit and the first input terminal of the first detection circuit; and

a first switch configured to cut off a connection between the capacitor and the first detection circuit, based on an output signal of the first detection circuit, until the first voltage is output from the first boost circuit.

2. The voltage generation circuit according to claim 1 , wherein a first end of the capacitor is connected to the output terminal of the first boost circuit, and

wherein a second end of the capacitor is connected to the first input terminal of the first detection circuit via the first switch.

3. The voltage generation circuit according to claim 2 , wherein the first switch includes a first transistor, and

wherein a first end of the first transistor is connected to the second end of the capacitor and a second end of the first transistor is connected to the first input terminal of the first detection circuit.

4. The voltage generation circuit according to claim 1 , further comprising:

a second switch configured to establish a connection between the capacitor and a ground terminal, based on another output signal of the first detection circuit, until the first voltage is output from the first boost circuit.

5. The voltage generation circuit according to claim 4 , wherein the first boost circuit includes a charge pump circuit,

wherein the voltage division circuit includes

a first resistance, a first end of the first resistance being connected to the output terminal of the first boost circuit, a second end of the first resistance being connected to the first input terminal of the first detection circuit; and

a second resistance, a first end of the second resistance being connected to the second end of the first resistance, a second end of the second resistance being electrically connected to the ground terminal;

wherein the first detection circuit includes a differential amplifier,

wherein a first end of the capacitor is connected to the output terminal of the first boost circuit,

wherein the first switch includes

a first transistor, a first end of the first transistor being connected to a second end of the capacitor, a second end of the first transistor being connected to the first input terminal of the first detection circuit, and

wherein the second switch includes

a second transistor, a first end of the second transistor being connected to the second end of the capacitor, a second end of the first transistor being connected to the ground terminal.

6. The voltage generation circuit according to claim 5 , further comprising:

a logical circuit, an input terminal of the logical circuit being connected to an output terminal of the first detection circuit, an output terminal of the logical circuit being connected to a gate of the first transistor.

7. The voltage generation circuit according to claim 5 , further comprising:

a logical circuit, an input terminal of the logical circuit being connected to an output terminal of the first detection circuit, an output terminal of the logical circuit being connected to a gate of the second transistor.

8. The voltage generation circuit according to claim 1 , further comprising:

a second switch configured to establish a connection between the capacitor and a reference voltage terminal, based on another output signal of the first detection circuit, until the first voltage is output from the first boost circuit.

9. The voltage generation circuit according to claim 8 , wherein the first boost circuit includes a charge pump circuit,

wherein the voltage division circuit includes

a first resistance, a first end of the first resistance being connected to the output terminal of the first boost circuit, a second end of the first resistance being connected to the first input terminal of the first detection circuit, and

a second resistance, a first end of the second resistance being connected to the second end of the first resistance, a second end of the second resistance being electrically connected to a ground terminal,

wherein the first detection circuit includes a differential amplifier,

wherein a first end of the capacitor is connected to the output terminal of the first boost circuit,

wherein the first switch includes

a first transistor, a first end of the first transistor being connected to a second end of the capacitor, a second end of the first transistor being connected to the first input terminal of the first detection circuit, and

wherein the second switch includes

a second transistor, a first end of the second transistor being connected to the second end of the capacitor, a second end of the first transistor being connected to the reference voltage terminal.

10. The voltage generation circuit according to claim 9 , further comprising:

a logical circuit, an input terminal of the logical circuit being connected to an output terminal of the first detection circuit, an output terminal of the logical circuit being connected to a gate of the first transistor.