Abstract: A circuit device includes an oscillation circuit configured to cause a resonator to oscillate, a clock signal output circuit configured to output a clock signal based on an oscillation signal from the oscillation circuit, a temperature compensation circuit configured to perform temperature compensation on an oscillation frequency of the oscillation signal, a low-potential-side power supply pad to which low-potential-side electric power is supplied, a high-potential-side power supply pad to which high-potential-side electric power is supplied, and an inter-power-supply capacitor provided between a low-potential-side power supply line electrically continuous with the low-potential-side power supply pad and a high-potential-side power supply line electrically continuous with the high-potential-side power supply pad. The inter-power-supply capacitor is formed of at least two metal layers provided in a region where the temperature compensation circuit is disposed in a plan view.

Abstract: An oscillation circuit includes an amplification circuit that causes a resonator to oscillate, and a variable capacitance circuit whose capacitance value is controlled on the basis of a control voltage. The variable capacitance circuit includes a first variable capacitive element in which an inflection point voltage in a change characteristic of a capacitance value for the control voltage is a first voltage, and a second variable capacitive element in which an inflection point voltage in a change characteristic of a capacitance value for the control voltage is a second voltage which is different from the first voltage. A capacitance value of the first variable capacitive element when the control voltage is the first voltage is different from a capacitance value of the second variable capacitive element when the control voltage is the second voltage.

Abstract: A round bar output shaft is provided and fitted into an anti-slip member so as to rotate integrally with the anti-slip member. A recess is formed on the anti-slip member to make the stress generated on the anti-slip member by the output shaft fitted in non-uniform around a periphery of the anti-slip member. While the anti-slip member is being molded, a weld line is formed in a low-stress-generating portion.

Abstract: A fan includes a cylindrical anti-slip member that is rotatable integrally with a fan body. The anti-slip member is a molded product of a resin material with higher mechanical strength than the resin material of the fan body. A round bar output shaft is fitted into the anti-slip member. Recesses are formed on the outer peripheral surface of the anti-slip member.

Abstract: A circuit device includes an oscillation circuit, a clock signal output circuit that outputs a clock signal based on an output signal from the oscillation circuit, and an output control circuit. The output control circuit includes a counter circuit that performs a counting process on the basis of the output signal from the oscillation circuit, and a count enable signal generation circuit that outputs a count enable signal for the counter circuit. The counter circuit starts the counting process when the count enable signal becomes active, and outputs an output enable signal for the clock signal to the clock signal output circuit on the basis of a result of the counting process.

Abstract: A laser welding device includes: a laser scanner body configured to emit a laser beam to a workpiece; a jet nozzle configured to jet gas so as to cause the gas to cross an optical path of the laser beam emitted from the laser scanner body; and a guide plate disposed on the downstream side in the flow direction of the gas, from the optical path of the laser beam emitted from the laser scanner body. The guide plate is configured to change the flow direction of the gas that has crossed the optical path of the laser beam into a direction away from a laser irradiation position on the workpiece toward the downstream side in the flow direction of the gas.

Abstract: A circuit device includes a first oscillation circuit, a second oscillation circuit, a clock signal output circuit adapted to output a clock signal based on an output signal of the first oscillation circuit, and an output control circuit adapted to perform output control of the clock signal output circuit. The output control circuit includes a counter circuit adapted to perform a counting process based on an output signal of the second oscillation circuit, and the counter circuit outputs an output enable signal of the clock signal to the clock signal output circuit based on a result of the counting process.

Abstract: An oscillation circuit that causes a vibrator to oscillate includes a bipolar transistor for oscillation, a P-type transistor having a gate to which a collector voltage of the bipolar transistor is input and a source to which a base of the bipolar transistor is connected, a first current source that supplies a current to the bipolar transistor, and a second current source that supplies a current to the P-type transistor.

Abstract: A circuit device includes an oscillation circuit configured to cause a resonator to oscillate, a clock signal output circuit configured to output a clock signal based on an oscillation signal from the oscillation circuit, a temperature compensation circuit configured to perform temperature compensation on an oscillation frequency of the oscillation signal, a low-potential-side power supply pad to which low-potential-side electric power is supplied, a high-potential-side power supply pad to which high-potential-side electric power is supplied, and an inter-power-supply capacitor provided between a low-potential-side power supply line electrically continuous with the low-potential-side power supply pad and a high-potential-side power supply line electrically continuous with the high-potential-side power supply pad. The inter-power-supply capacitor is formed of at least two metal layers provided in a region where the temperature compensation circuit is disposed in a plan view.

Abstract: An oscillation circuit includes an amplification circuit that causes a resonator to oscillate, and a variable capacitance circuit whose capacitance value is controlled on the basis of a control voltage. The variable capacitance circuit includes a first variable capacitive element in which an inflection point voltage in a change characteristic of a capacitance value for the control voltage is a first voltage, and a second variable capacitive element in which an inflection point voltage in a change characteristic of a capacitance value for the control voltage is a second voltage which is different from the first voltage. A capacitance value of the first variable capacitive element when the control voltage is the first voltage is different from a capacitance value of the second variable capacitive element when the control voltage is the second voltage.

Abstract: A circuit device includes a first pad and a second pad that are disposed in a first pad disposition region along a first side; a third pad and a fourth pad that are disposed in a second pad disposition region along a second side which faces the first side; and a first to fourth electrostatic protection circuits that are disposed in a circuit disposition region between the first pad disposition region and the second pad disposition region and are connected to the first to fourth pads.

Abstract: A circuit device includes an oscillation circuit, a clock signal output circuit that outputs a clock signal based on an output signal from the oscillation circuit, and an output control circuit. The output control circuit includes a counter circuit that performs a counting process on the basis of the output signal from the oscillation circuit, and a count enable signal generation circuit that outputs a count enable signal for the counter circuit. The counter circuit starts the counting process when the count enable signal becomes active, and outputs an output enable signal for the clock signal to the clock signal output circuit on the basis of a result of the counting process.

Abstract: A round bar output shaft is provided and fitted into an anti-slip member so as to rotate integrally with the anti-slip member. A recess is formed on the anti-slip member to make the stress generated on the anti-slip member by the output shaft fitted in non-uniform around a periphery of the anti-slip member. While the anti-slip member is being molded, a weld line is formed in a low-stress-generating portion.

Abstract: A semiconductor circuit device includes an oscillation circuit, an output circuit that receives a signal output from an oscillation circuit and outputs an oscillation signal, a temperature sensing element, a characteristic adjustment circuit that adjusts characteristics of the oscillation circuit on the basis of a signal output from the temperature sensing element, and a first connection terminal that is electrically connected to the output circuit and via which the oscillation signal is output, in which a distance between the output circuit and the first connection terminal is shorter than a distance between the temperature sensing element and the first connection terminal in a plan view.

Abstract: A fan includes a cylindrical anti-slip member that is rotatable integrally with a fan body. The anti-slip member is a molded product of a resin material with higher mechanical strength than the resin material of the fan body. A round bar output shaft is fitted into the anti-slip member. Recesses are formed on the outer peripheral surface of the anti-slip member.

Abstract: An oscillation circuit includes a terminal XO, a terminal XI, an oscillation unit, and a voltage generation circuit that generates a first voltage and a second voltage. The oscillation unit includes a variable capacitive element connected to the terminal XO or the terminal XI. In a first mode, a signal having a first amplitude is applied between the terminal XO and the terminal XI, and a first voltage is applied to the other end of the variable capacitive element. In a second mode, a signal having a second amplitude larger than an amplitude of the signal having the first amplitude is applied between the terminal XO and the terminal XI, a second voltage is applied to the other end of the variable capacitive element, and a voltage applied to the both ends of the variable capacitive element is lower than the maximum rated voltage of the variable capacitive element.

Abstract: A semiconductor circuit device includes: a semiconductor substrate; and a first circuit block including an analog circuit as a component, a second circuit block including a digital circuit as a component, a connection pad, and a connection wire electrically connecting the connection pad with the first circuit block, all of which are arranged on the semiconductor substrate. The connection wire is provided so as not to overlap the second circuit block in a plan view.

Abstract: A semiconductor circuit device includes an oscillation circuit, an output circuit that outputs a signal output from the oscillation circuit, a temperature sensing element, a characteristic adjustment circuit that adjusts characteristics of the oscillation circuit on the basis of a signal output from the temperature sensing element, a first wiring via which power is supplied to the output circuit, and a second wiring via which a reference voltage is supplied to the output circuit in which at least one of the first wiring and the second wiring overlaps the temperature sensing element in a plan view.

Abstract: An oscillation circuit includes: an oscillation unit which includes a first terminal and a second terminal connected to a vibrator; a third terminal to which a ground potential is supplied; a fourth terminal which is electrically connected to the second terminal, and to which at least one of an AC voltage for driving the vibrator and a voltage for operating the oscillation unit is applied; and a first switching unit which switches modes of electrical connection between the first terminal and the third terminal.

Abstract: An oscillation circuit includes: an oscillation unit which includes a first terminal and a second terminal connected to a resonator, a third terminal, a fourth terminal to which at least one of a power supply potential and a signal for inspecting the resonator is applied, a first switching unit which switches modes of electrical connection between the first terminal and the third terminal, and a second switching unit which switches modes of electrical connection between the second terminal and the fourth terminal.