Abstract: This application relates to the field of electronic technologies, and in particular, to an electronic device. A camera assembly may be supported, and a charging path or a high-current path may be shortened, so that an impedance can be reduced, efficiency can be improved, and power consumption can be prevented from being increased.

Abstract: Disclosed is a lighting device with low-power consumption, including: a rectification circuit, a supply circuit of intelligent module, an intelligent module, a silicon controlled dimming circuit, a white light driving circuit, a white light lamp panel, a RGB driving circuit, and a RGB lamp panel. The above lighting device with low-power consumption can provide maintenance current through the silicon controlled dimming circuit. During operation of the white light driving circuit, the silicon controlled dimming circuit keeps working consistently. When the lighting function is turned off, the silicon controlled dimming circuit turns off the output and enters a standby state.

Abstract: The present application relates to a field of motor, in particular, relates to a brushless direct current motor and a hair dryer using the same, which includes a main body and a driver. The driver includes a driving board configured for integrating driving components, a control board configured for integrating control components and a wiring board configured for wiring. The driving board is provided at a side of the wiring board away from the stator end of the main body. A plane where the driving board is located is parallel to an extending direction of the stator end of the main body towards the wiring board. The driving board is configured to be electrically connected with the wiring board and the control board respectively. The present application has an effect of improving a heat dissipation efficiency of the driving components of the motor in the hair dryer.

Abstract: The present application relates to a field of motor, in particularly, relates to an integrated high speed brushless DC motor, which includes a main body and a driver. The driver includes a driving board configured for integrating driving components, a control board configured for integrating control components and a wiring board configured for wiring. The driving board is provided at a side of the wiring board away from the stator end of the main body, and the driving board is electrically connected with the wiring board and the control board respectively.

Abstract: The present application relates a two-wire communication control device and a multi-purpose device. The two-wire communication control device includes a signal receiving module, a first control module, at least one second control module, a power supply module, a coding module, and a decoding module. The signal receiving module is connected to the first control module, the first control module is connected to the coding module, the coding module is connected to the power supply module, the decoding module is connected to the coding module, the decoding module is further connected to the second control module, the power supply module is connected to a live wire and a neutral wire, the power supply module is further connected the first control module and the second control module, one of the coding module and the decoding module is connected to the live wire, and the other is connected to the neutral wire.

Abstract: The present application relates to a fan lamp control system and method, and the system includes: a control module, a processing module, a fan module, a lamp panel module and a power supply module; the fan module is configured for controlling a rotating state of a fan; the lamp panel module is configured for controlling an illuminating state of a lamp; the control module is configured for sending a control instruction for controlling the rotating state of the fan and the illuminating state of the lamp; the control module includes a first control unit and a second control unit; the processing module is configured for controlling the fan module and the lamp panel module to perform a corresponding operation based on the control instruction.

Abstract: A single phase line switch having a phase line input connected to a phase line of the electric network and a phase line output connected to a negative line of the electric network via resistive loads or capacitive loads. The single phase line includes a first power supply unit connected between the phase line input and the phase line output, a second power supply unit, a controlled switch configured to control the second power unit to be on or off, and a micro control unit (MCU) configured to control the controlled switch to be switched on or off. The first power supply unit is configured to provide a power supply to the MCU when the controlled switch is off. The second power unit is configured to provide a power supply to the MCU and the controlled switch when the controlled switch is on, the second power supply unit being serially connected with the controlled switch, the second power supply and the controlled switch being parallel connected with the first power supply unit.

Abstract: A constant power limiter includes a control circuit and a power source circuit thereof, and the control circuit includes a voltage detection circuit configured for detecting a voltage of power source; a current detection circuit configured for detecting a load current; a zero-cross detection circuit configured for detecting a zero-cross point of AC power; a load driving circuit including a controlled silicon; and a micro control unit (MCU) configured for receiving output signals from the voltage detection circuit, the current detection circuit, and the zero-cross detection circuit, and outputting a control signal respectively to the load driving circuit to control a load power, wherein when the load power is less than or equal to a set power value, the load driving circuit has the controlled silicon fully open, when load power is no less than the set power value, the load driving circuit has the controlled silicon conduction angle decreased to stabilize the load power at the set power value.

Abstract: The invention relates to a method for providing short-circuit protection for a resistive AC load, wherein the load is connected with an AC power supply through an active controlled switch controlled by a controller. The method for providing short-circuit protection for the resistive AC load comprises the following steps of: turning on the active controlled switch within a first conduction angle range; obtaining the mean current value of the load through a current detection circuit; and determining whether the mean current value of the load is greater than a default value or not, wherein, if so, the active controlled switch is controlled to be turned off, and if not, the active controlled switch is controlled to be turned on. The invention also relates to a device and a switch for providing short-circuit protection for the resistive AC load.

Abstract: An ultrasonic atomization circuit comprises a driving signal generating unit to generate an ultrasonic driving signal, a power unit to amplify and transmit the ultrasonic driving signal to a piezoelectric ceramic lamination, and a buffering unit connecting to the driving signal generating unit and the power unit to reduce the effect by the load of the power unit to the driving signal generating unit. The present invention is directed to provide an atomization device using the above ultrasonic atomization circuit. For the ultrasonic atomization circuit being disposed between the power unit and the driving signal generating unit, the ultrasonic atomization circuit can reduce the effect by the disperse circuits and reactance to the driving signal generating unit, meanwhile need less units and be easy to test.

Abstract: An anti dumping switch includes a circular and hollow housing, a bottom surface connected to the housing, a first switch end, a second switch end, a bush, and two balls, the housing and the bottom surface cooperatively defining a accommodating space, the first switch end and the second switch end both extending into the accommodating space through the bottom surface and fixed in the bottom surface, the balls being received in the accommodating space.

Abstract: The invention relates to a method for providing short-circuit protection for a resistive AC load, wherein the load is connected with an AC power supply through an active controlled switch controlled by a controller. The method for providing short-circuit protection for the resistive AC load comprises the following steps of: turning on the active controlled switch within a first conduction angle range; obtaining the mean current value of the load through a current detection circuit; and determining whether the mean current value of the load is greater than a default value or not, wherein, if so, the active controlled switch is controlled to be turned off, and if not, the active controlled switch is controlled to be turned on. The invention also relates to a device and a switch for providing short-circuit protection for the resistive AC load.

Abstract: A constant power limiter includes a control circuit and a power source circuit thereof, and the control circuit includes a voltage detection circuit configured for detecting a voltage of power source; a current detection circuit configured for detecting a load current; a zero-cross detection circuit configured for detecting a zero-cross point of AC power; a load driving circuit including a controlled silicon; and a micro control unit (MCU) configured for receiving output signals from the voltage detection circuit, the current detection circuit, and the zero-cross detection circuit, and outputting a control signal respectively to the load driving circuit to control a load power, wherein when the load power is less than or equal to a set power value, the load driving circuit has the controlled silicon fully open, when load power is no less than the set power value, the load driving circuit has the controlled silicon conduction angle decreased to stabilize the load power at the set power value.

Abstract: An ultrasonic atomization circuit comprises a driving signal generating unit to generate an ultrasonic driving signal, a power unit to amplify and transmit the ultrasonic driving signal to a piezoelectric ceramic lamination, and a buffering unit connecting to the driving signal generating unit and the power unit to reduce the effect by the load of the power unit to the driving signal generating unit. The present invention is directed to provide an atomization device using the above ultrasonic atomization circuit. For the ultrasonic atomization circuit being disposed between the power unit and the driving signal generating unit, the ultrasonic atomization circuit can reduce the effect by the disperse circuits and reactance to the driving signal generating unit, meanwhile need less units and be easy to test.

Abstract: A single phase line switch having a phase line input connected to a phase line of the electric network and a phase line output connected to a negative line of the electric network via resistive loads or capacitive loads. The single phase line includes a first power supply unit connected between the phase line input and the phase line output, a second power supply unit, a controlled switch configured to control the second power unit to be on or off, and a micro control unit (MCU) configured to control the controlled switch to be switched on or off. The first power supply unit is configured to provide a power supply to the MCU when the controlled switch is off. The second power unit is configured to provide a power supply to the MCU and the controlled switch when the controlled switch is on, the second power supply unit being serially connected with the controlled switch, the second power supply and the controlled switch being parallel connected with the first power supply unit.

Abstract: An anti dumping switch includes a circular and hollow housing, a bottom surface connected to the housing, a first switch end, a second switch end, a bush, and two balls, the housing and the bottom surface cooperatively defining a accommodating space, the first switch end and the second switch end both extending into the accommodating space through the bottom surface and fixed in the bottom surface, the balls being received in the accommodating space.

Abstract: A door lock system having state feedback comprises a door lock; a control circuit for controlling the unlocking or locking of the door lock; a feedback circuit for detecting the state of the door lock; a central processing unit for reading the state of the door lock outputted from the feedback circuit and controlling the control circuit to unlock or lock the door lock. In the door lock system, the electromagnetic valve is used instead of mechanical switch, which lowers the failure rate of the door lock and improves the reliability of the door lock, and the feedback circuit is capable of detecting the state of door lock, and therefore a feedback signal can be provided in time when the door lock is failed, which ensures the efficient control of the door lock.

Abstract: An electromechanical timer includes a case (1), an electric motor (3) and a unidirectional transmission device (4) disposed in the case. The electric motor is engaged with the unidirectional transmission device, the unidirectional transmission device is connected with a ratchet (5) setting voltages, and the ratchet is fixed with a handle (2). Voltages corresponding to the handle at different rotating positions are collected by a voltage acquisition unit. The voltage acquisition unit outputs the voltages to a control unit. The control unit is connected with the electric motor. The unidirectional transmission device and the ratchet setting voltages realize the random timing at any position.