초록 ▼

The present invention relates to smart lighting devices bearing processors, and networks comprising smart lighting devices, capable of providing illumination, and detecting stimuli with sensors and/or sending signals. Sensors and emitters can, in some embodiments, be removed and added in a modular f

The present invention relates to smart lighting devices bearing processors, and networks comprising smart lighting devices, capable of providing illumination, and detecting stimuli with sensors and/or sending signals. Sensors and emitters can, in some embodiments, be removed and added in a modular fashion. Smart lighting devices and smart lighting networks can be used for communication purposes, building automation, systems monitoring, and a variety of other functions.

대표청구항 ▼

The present invention relates to smart lighting devices bearing processors, and networks comprising smart lighting devices, capable of providing illumination, and detecting stimuli with sensors and/or sending signals. Sensors and emitters can, in some embodiments, be removed and added in a modular f

The present invention relates to smart lighting devices bearing processors, and networks comprising smart lighting devices, capable of providing illumination, and detecting stimuli with sensors and/or sending signals. Sensors and emitters can, in some embodiments, be removed and added in a modular fashion. Smart lighting devices and smart lighting networks can be used for communication purposes, building automation, systems monitoring, and a variety of other functions. 昱 miconductor switch drivable with the second supply voltage and connected between the second electrode of the motor and the grounding circuitry; a fourth semiconductor switch drivable with the second supply voltage and connected between the first electrode of the motor and the grounding circuitry; a first drive circuit configured to drive the first semiconductor switch; a second drive circuit configured to drive the second semiconductor switch; a third drive circuit using the second supply voltage as a drive signal to drive the third semiconductor switch; a fourth drive circuit using the second supply voltage as a drive signal to drive the fourth semiconductor switch; and a controller configured to synchronously control the first, second, third and fourth drive circuits to control a rotating direction of the motor. 9. The power supply system of claim 8, wherein the first semiconductor switch comprises a first n-channel field-effect transistor having a drain connected to the first power supply and a source connected to the first electrode of the motor, and the second semiconductor switch comprises a second n-channel field-effect transistor having a drain connected to the first power supply and a source connected to the second electrode of the motor, and wherein the first drive circuit comprises a first switching circuit powered from the first power supply and controlled from the controller and a first charge pump circuit connected between the first switching circuit and a gate of the first n-channel field-effect transistor, and the second drive circuit comprises a second switching circuit powered from the first power supply and controlled from the controller and a second charge pump circuit connected between the second switching circuit and a gate of the second n-channel field-effect transistor. 10. The power supply system of claim 8, wherein the first semiconductor switch comprises a first p-channel field-effect transistor having a source connected to the first power supply and a drain connected to the first electrode of the motor, and the second semiconductor switch comprises a second p-channel field-effect transistor having a source connected to the first power supply and a drain connected to the second electrode of the motor, and wherein the first drive circuit comprises a first zener diode connected between a gate and the source of the first p-channel field-effect transistor and a first switching transistor connected between the gate of the first p-channel field-effect transistor and the grounding circuitry and controlled from the controller, and the second drive circuit comprises a second zener diode connected between a gate and the source of the second p-channel field-effect transistor and a second switching transistor connected between the gate of the second p-channel field-effect transistor and the grounding circuitry and controlled from the controller. 11. A power supply system in which on/off control of a semiconductor switch is performed to control supply of electrical power from a first power supply to a load, comprising: a second power supply with a second voltage larger than a first voltage of the first power supply; and a driver outputting to a control input terminal of the semiconductor switch an on/off control signal for performing on/off control of the semiconductor switch, wherein the driver uses the second voltage supplied from the second power supply to produce the on/off control signal, wherein the second power supply comprises a battery installed in a front part of a vehicle. 12. A power supply system comprising: a first semiconductor switch connected to a first power supply and to a first end of a motor; a second semiconductor switch connected to a second end of the motor and to ground; a third semiconductor switch connected to the first power supply and to the second end of the motor; a fourth semiconductor switch connected to the first end of the motor and to ground; a second power supply having a second voltage, larger than a first voltage of the first power supply and capable of on/off controlling the first and third semiconductor switches; a first driver outputting to a control input terminal of the first semiconductor switch a signal for performing on/off control of the first semiconductor switch by means of the second voltage; a second driver performing on/off control of the second semiconductor switch linked to on/off control of the first semiconductor switch; a third driver outputting to a control input terminal of the third semiconductor switch a signal for performing on/off control of the third semiconductor switch by means of the second voltage; and a fourth driver performing on/off control of the fourth semiconductor switch linked to on/off control of the third semiconductor switch. 13. A power supply method comprising: providing a first power supply having a first supply voltage; providing a second supply voltage larger than the first supply voltage; connecting an n-channel field-effect transistor between the first power supply and a load, as a semiconductor switch drivable with the second supply voltage, having a drain thereof connected to the first power supply, a source thereof connected to the load, and a gate thereof connected to the drive circuit; and generating a drive signal to drive the semiconductor switch using the second supply voltage. 14. A power supply method for a vehicle including a tail lamp as a load, the power supply method comprising: providing a first power supply having a first supply voltage; providing a battery in a front part of the vehicle, as a second power supply having a second supply voltage larger than the first supply voltage; connecting a semiconductor switch between the first power supply and the load, the semiconductor switch being drivable with the second supply voltage; and generating a drive signal to drive the semiconductor switch using the second supply voltage. 15. A method for supplying electrical power from a first power supply to a load by performing on/off control of a semiconductor switch, the method comprising: supplying to a driver from a second power supply a second voltage larger than a first voltage from the first power supply and capable of on/off controlling the semiconductor switch; and outputting to a control input terminal of the semiconductor switch an on/off control signal for on/off controlling the semiconductor switch, the on/off control signal being produced using the second voltage supplied to the driver from the second power supply, wherein the second power supply comprises a battery installed in a front part of a vehicle. 16. A power supply system comprising: a first power supply outputting a first supply voltage to operate a low-voltage load; a second power supply outputting a second supply voltage greater than the first supply voltage, to operate a high-voltage load; a semiconductor switch connected between the first power supply and the low-voltage load; and a drive circuit configured to drive the semiconductor switch, wherein the semiconductor switch comprises a field-effect transistor having a drain thereof connected to the first power supply, and a source thereof connected to the low-voltage load, the field-effect transistor being drivable with the second supply voltage, and the drive circuit comprises a switching circuit connected to the second power supply, an output resistor connected between the switching circuit and a gate of the field-effect transistor, and a Zener diode connected between the output resistor and the source of the field-effect transistor. 17. A power supply system according to claim 16, wherein the field-effect transistor is an n-channel type. 18. A power supply system according to claim 16, wherein the switching circuit comprises a first transistor having an emitter thereof connected to the second power supply, and a collector there of connected to the gate of the field-effect transistor. 19. A power supply system according to claim 18, wherein the switching circuit further comprises a second transistor having a collector thereof connected to a base of the first transistor, an emitter thereof grounded, and a base thereof configured to receive a switching control signal. 20. A power supply system for vehicles including a low-voltage load and a high-voltage load, the power supply system comprising: a first power supply outputting a first supply voltage to operate the low-voltage load; a second power supply outputting a second supply voltage greater than the first supply voltage, to operate the high-voltage load; a semiconductor switch connected between the first power supply and the low-voltage load; and a drive circuit configured to drive the semiconductor switch, wherein the semiconductor switch comprises a field-effect transistor having a drain thereof connected to the first power supply, and a source thereof connected to the low-voltage load, the field-effect transistor being drivable with the second supply voltage; and the drive circuit comprises a switching circuit connected to the second power supply, an output resistor connected between the switching circuit and a gate of the field-effect transistor, and a Zener diode connected between the output resistor and the source of the field-effect transistor. 21. A power supply system for vehicles according to claim 20, wherein the low-voltage load comprises a tail lamp of a vehicle, the first power supply comprises a battery installed in a rear part of the vehicle, and the second power supply comprises a battery installed in a front part of the vehicle. 22. A power supply system for vehicles including a low-voltage load provided with a motor having a first and a second electrode mutually different in polarity, a high-voltage load, and grounded circuitry, the power supply system comprising: a first power supply outputting a first supply voltage to operate the low-voltage load; a second power supply outputting a second supply voltage greater than the first supply voltage, to operate the high-voltage load; a first semiconductor switch connected between the first electrode of the motor and the grounded circuitry; a second semiconductor switch connected between the second electrode of the motor and the grounded circuitry; a third semiconductor switch connected between the first power supply and the first electrode of the motor; a fourth semiconductor switch connected between the first power supply and the second electrode of the motor; a first drive circuit configured to drive the first semiconductor switch; a second drive circuit configured to drive the second semiconductor switch; a third drive circuit configured to drive the third semiconductor switch; a fourth drive circuit configured to drive the fourth semiconductor switch; and a controller configured for synchronous control of the first, the second, the third, and the fourth drive circuit to control a rotational direction of the motor, wherein one of the first and the second semiconductor switch comprises a first n-channel field-effect transistor having a drain thereof connected to the first power supply, and a source thereof connected to one of the first and the second electrode of the motor, the first n-channel field-effect transistor being drivable with the second supply voltage, and one of the first and the second drive circuit comprises a first switching circuit connected to the second power supply, a first output resistor connected between the first switching circuit and a gate of the first n-channel field-effect transistor, and a first Zener diode connected between the first output resistor and the source of the first n-channel field-effect transistor. 23. A power supply system for vehicles according to claim 22, wherein one of the third and the fourth semiconductor switch comprises a second n-cha