To provide a novel ignition control device of an internal combustion engine capable of reducing the number of adjustment steps required for adjustment such as matching of a MOS gate voltage or the like without being affected by device variation. A detection voltage is generated in a detection voltage generation unit on the basis of a primary current flowing through a current detection resistor 26 having a positive temperature dependent characteristic formed of a metal material, and a reference voltage is generated by a potential difference (proportional to a thermal voltage VT) between a base and an emitter of a first bipolar transistor circuit 31 and a multiple type second bipolar transistor circuit 32 in which a plurality of bipolar transistors are connected in parallel, and a resistance value of a first resistor 33 connected to the emitter side of the plurality of the bipolar transistor circuit 32, and is generated in a reference voltage generation unit on the basis of a current having a positive temperature dependent characteristic similar to the current detection resistor 26. According to this, since a reference voltage value is determined by a specific accuracy of a bipolar transistor, it is possible to eliminate adjustment steps such as matching of a MOS gate voltage without being affected by device variation and suppress an increase in the unit price of a product.

A method and apparatus for performing current control for an integrated circuit are described. In one embodiment the apparatus comprises core logic coupled to receive a first current; a clock generator to generate a first clock signal; and a closed loop current controller coupled to the clock generator and coupled to provide a second clock signal to the core logic based on the first clock signal, the current controller to control an amount of the first current received by the core logic by changing the first clock signal to generate the second clock signal.

A vacuum pump and a control device are capable of accurately determining timing of rotor blade replacement by creating an index which allows a degree of fatigue of a rotor blade to be determined quantitatively and easily. A motor current value output from a motor drive control portion is input to a time count processing portion, and time in which a current value of a rotating body remains in a range of a stage is totalized for each stage of the current value in the time count processing portion. A rotor blade temperature value output from a rotor blade temperature measurement portion is also input to the time count processing portion. A one-minute average value of the rotor blade temperature value acquired by sampling is calculated. For each stage of the rotor blade temperature value, time in which the average value remains in a range of the stage is totalized.

A voltage supervisor includes a first transistor coupled between a first supply voltage and a second supply voltage. The voltage supervisor includes a second transistor coupled between the first supply voltage and the second supply voltage. The voltage supervisor is configured to provide a first current proportional to a difference in gate-to-source voltages of the first transistor and the second transistor. The voltage supervisor is also configured to provide a second current proportional to a difference in the first supply voltage and the difference in gate-to-source voltages of the first transistor and the second transistor. The voltage supervisor is configured to compare the first current to the second current to determine a voltage value that changes a state responsive to the first supply voltage crossing a threshold.

A system for automatically commissioning a solar panel array comprises a plurality of panel monitoring devices, each panel monitoring device connected between a positive and negative terminal of a solar panel. Each panel monitoring device comprises a switching device, the switching device configurable to disconnect an output from the solar panel. The system further comprises logic configured to automatically obtain a relative position of each panel monitoring device in the system by appointing serially a series of masters from among the panel monitoring devices, each master in turn broadcasting a unique identifier and enabling its output. Each panel monitoring device listens to the masters' broadcasts and stores in memory the unique identifier and information indicating whether the panel monitoring device detected the masters' voltage. The panel monitoring devices determine their respective locations by analyzing the information broadcast by, and the voltage detected from, the masters.

A memory system includes a connector through which power for the memory system is to be supplied from an external device, a controller, a nonvolatile memory device, a power source circuit connected to the controller and the nonvolatile memory device by power lines through which power is supplied to the controller and the nonvolatile memory device, and a power source control circuit that receives a supply of power from the external device through the connector and supplies the power to the power control circuit. The power source control circuit is configured to detect using a divided voltage of a voltage of the power supplied thereto, that the voltage of the power supplied thereto is higher than a predetermined voltage and interrupt the power supplied to the power control circuit if the voltage of the power supplied thereto is higher than the predetermined voltage.

A process for producing a light emitting diode device, the process including: forming a plurality of quantum dots on a surface of a layer including a first area and a second area; exposing the first area of the surface to light having a first wavelength while exposing the first area to a first etchant that causes the quantum dots in the first area to be etched at a first etch rate while the quantum dots have a dimension at or greater than a first threshold dimension; exposing the second area of the surface to light having a second wavelength while exposing the second area to a second etchant that causes the quantum dots in the second area to be etched at a third etch rate while the quantum dots have a dimension at or greater than a second threshold dimension; and processing the etched layer to form the LED device.

A deposition substance monitoring device of a vacuum pump for rotatably driving a rotor by a motor to exhaust gas, comprises: a state determination section configured to determine whether or not the vacuum pump is in a predetermined exhaust state; and a deposition amount determination section configured to receive a deposition amount indicator for an amount of a deposition substance in the pump to determine as excessive deposition when the deposition amount indicator in the predetermined exhaust state is equal to or greater than an acceptable deposition threshold.

In order to suppress both large current and arc discharge during hot switching, a grounding circuit includes a first relay, a second relay, and a third relay, a first resistance connected in series with the first relay and is capable of connecting the feeding path to the ground, and a voltage divider connected in series with the second relay and the third relay and is connectable in such a way as to divide voltage between the feeding path and the ground, the third relay being disposed at a point at which the voltage is divided, and when the feeding path is to be connected to the ground, the feeding path is connected to the ground via the first resistance by the first relay, the voltage divider is connected in parallel with the first relay and the first resistance, and a connection to the ground is cut off.

A control system for controlling operation of an execution device is provided. The control system includes a master controller, a microprocessor, and a signal line. The master controller is configured to send a control signal to the microprocessor via the signal line. The microprocessor is configured to send the control signal to the execution device to drive the execution device to operate, acquire, at a time interval, a feedback signal representing an operation state of the execution device, and send the feedback signal to the signal line. The master controller is further configured to acquire the feedback signal from the signal line, determine, from the feedback signal, the operation state of the execution device, and regulate the control signal based on the operation state.