# US 12,184,210 B1 · Fan and lamp control circuit, fan and lamp device, and fan and lamp system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,210 B1 - Document ID: US12184210B1 - Status: Granted - Kind: B1 - Application number: 18/613,722 - Filed: 2024-03-22 - Granted: 2024-12-31 - Earliest claimed: 2024-02-20 - Assignees: Shenzhen Funpower General Technology Co., Ltd. - Applicants: Shenzhen Funpower General Technology Co., Ltd. - Inventors: Biaowei Tao - Web page: https://patentgrep.com/patent/US12184210B1 ## CPC - H02P 23/20: Controlling the acceleration or deceleration - F04D 25/06: the pump being electrically driven (F04D25/08 takes precedence) - F04D 27/001: {Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring} - F04D 27/004: {by varying driving speed} - H05B 45/20: Controlling the colour of the light - H05B 45/30: Driver circuits - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract Disclosed are a fan and lamp control circuit, a fan and lamp device, and a fan and lamp system. The fan and lamp control circuit includes: a voltage conversion circuit configured to convert a voltage output by an AC power supply to obtain a converted voltage and output the converted voltage; an LED drive circuit, configured to drive the LED lamp to work and adjust the brightness and color temperature of the LED lamp according to the received LED control signal; a fan drive circuit, configured to drive the fan to work and adjust the speed of the fan according to the received fan control signal; and a main control circuit, the output end of the main control circuit is electrically connected to the input ends of the LED drive circuit and the fan drive circuit, for sending the LED control signal and the fan control signal. ## Claims ### Claim 1 A fan and lamp control circuit, comprising: a voltage conversion circuit, wherein the voltage conversion circuit is connected to an alternating current (AC) power supply and configured to convert a voltage output by the AC power supply to obtain a converted voltage and output the converted voltage; a light-emitting diode (LED) drive circuit, wherein an output end of the voltage conversion circuit is electrically connected to an input end of the LED drive circuit; a fan drive circuit, wherein the output end of the voltage conversion circuit is electrically connected to an input end of the fan drive circuit; and a main control circuit, wherein the output end of the voltage conversion circuit is electrically connected to a power input end of the main control circuit, and a power output end of the main control circuit is electrically connected to the input ends of the LED drive circuit and the fan drive circuit, wherein the main control circuit is configured to send an LED control signal and a fan control signal, the LED drive circuit is configured to receive the LED control signal and drive an LED lamp to work and adjust brightness and color temperature of the LED lamp according to the LED control signal, and the fan drive circuit is configured to receive the fan control signal, and drive a fan to work and adjust a speed of the fan according to the fan control signal. ### Claim 2 (depends on 1) The fan and lamp control circuit of claim 1, wherein the voltage conversion circuit comprises a first voltage conversion circuit, and the first voltage conversion circuit comprises: a first terminal, wherein the first terminal is electrically connected to the AC power supply and configured to connect the AC power supply with a single live wire; and a first rectifying and filtering circuit, wherein an input end of the first rectifying and filtering circuit is electrically connected to the first terminal, for converting an alternating output by the first terminal into a stable direct voltage. ### Claim 3 (depends on 2) The fan and lamp control circuit of claim 2, wherein the voltage conversion circuit further comprises a second voltage conversion circuit, and the second voltage conversion circuit comprises: a second terminal, wherein the second terminal is electrically connected to the AC power supply and configured to connect the AC power supply with dual live wires; a second rectifying and filtering circuit, wherein an input end of the second rectifying and filtering circuit is electrically connected to the second terminal, for converting an alternating voltage corresponding to the AC power supply output by the second terminal into a stable direct voltage; and a phase detection circuit, wherein an input end of the phase detection circuit is electrically connected to the second terminal, and an output end of the phase detection circuit is electrically connected to a signal input end of the main control circuit, for identifying and measuring a phase difference of different signals and outputting to the main control circuit. ### Claim 4 (depends on 3) The fan and lamp control circuit of claim 3, further comprising: an isolation switch circuit, wherein an input end of the isolation switch circuit is electrically connected to an output end of the first rectifying and filtering circuit and an output end of the second rectifying and filtering circuit, and an output end of the isolation switch circuit is electrically connected to the input end of the LED driver circuit, for isolating a high voltage output by the first rectifying and filtering circuit or the second rectifying and filtering circuit into a safe voltage and outputting to the LED drive circuit; and a voltage adjustment circuit, wherein an input end of the voltage adjustment circuit is electrically connected to the output end of the first rectifying and filtering circuit and the output end of the second rectifying and filtering circuit, and an output end of the voltage adjustment circuit is electrically connected to the input ends of the main control circuit and the fan drive circuit, for adjusting a voltage output by the first rectifying and filtering circuit or the second rectifying and filtering circuit to a suitable voltage, and outputting to the main control circuit and the fan drive circuit. ### Claim 5 (depends on 4) The fan and lamp control circuit of claim 4, wherein the second rectifying and filtering circuit comprises: an LED rectifying and filtering sub-circuit, wherein an input end of the LED rectifying and filtering sub-circuit is electrically connected to the second terminal, and an output end of the LED rectifying and filtering sub-circuit is electrically connected to the input end of the isolation switch circuit, for rectifying the AC power supply connected to the second terminal and outputting to the isolation switch circuit; and a fan rectifying and filtering sub-circuit, wherein the input end of the LED rectifying and filtering sub-circuit is electrically connected to the second terminal, and the output end of the LED rectifying and filtering sub-circuit is electrically connected to the input end of the isolation switch circuit, for rectifying the AC power supply connected to the second terminal and outputting to the voltage adjustment circuit. ### Claim 6 (depends on 3) The fan and lamp control circuit of claim 3, wherein the phase detection circuit comprises: an LED phase detection sub-circuit, wherein an input end of the LED phase detection sub-circuit is electrically connected to the second terminal, and an output end of the LED phase detection sub-circuit is electrically connected to the signal input end of the main control circuit, for identifying and measuring a phase difference of voltage signals output to the LED driver circuit; and a fan phase detection sub-circuit, wherein an input end of the fan phase detection sub-circuit is electrically connected to the second terminal, and an output end of the fan phase detection sub-circuit is electrically connected to the signal input end of the main control circuit, for identifying and measuring a phase difference of voltage signals output to the fan drive circuit. ### Claim 7 (depends on 1) The fan and lamp control circuit of claim 1, wherein the LED drive circuit comprises: an LED drive sub-circuit, wherein an input end of the LED drive sub-circuit is electrically connected to the output end of the voltage conversion circuit and a signal output end of the main control circuit; and a de-stroboscopic sub-circuit, wherein an output end of the LED drive sub-circuit is electrically connected to the de-stroboscopic sub-circuit, for driving the LED lamp to work and adjusting the brightness and color temperature of the LED lamp according to the LED control signal, an input end of the de-stroboscopic sub-circuit is electrically connected to the output end of the LED drive sub-circuit, and an output end of the de-stroboscopic sub-circuit is electrically connected to a power supply end of the LED lamp, for smoothing voltage fluctuations output to the LED lamp. ### Claim 8 (depends on 1) The fan and lamp control circuit of claim 1, further comprising: a wireless module, wherein the wireless module is electrically connected to the main control circuit, for receiving an external control signal and sending working status signals of the fan and the lamp. ### Claim 9 A fan and lamp device, comprising: a fan and lamp control circuit; a fan comprising a fan body and a fan motor, wherein the fan motor is, provided in the fan body and configured to rotate blades of the fan body; an LED lamp, provided in the fan body and configured for lighting; and a temperature sensor, provided on a housing of the fan body and configured to collect an outside temperature; wherein the fan and lamp control circuit comprises: a voltage conversion circuit, wherein the voltage conversion circuit is connected to an AC power supply and configured to convert a voltage output by the AC power supply to obtain a converted voltage and output the converted voltage; a LED drive circuit, wherein an output end of the voltage conversion circuit is electrically connected to an input end of the LED drive circuit; a fan drive circuit, wherein the output end of the voltage conversion circuit is electrically connected to an input end of the fan drive circuit; and a main control circuit, wherein the output end of the voltage conversion circuit is electrically connected to a power input end of the main control circuit, and a power output end of the main control circuit is electrically connected to the input ends of the LED drive circuit and the fan drive circuit, wherein the main control circuit is configured to send an LED control signal and a fan control signal, the LED drive circuit is configured to receive the LED control signal and drive the LED lamp to work and adjust brightness and color temperature of the LED lamp according to the LED control signal, and the fan drive circuit is configured to receive the fan control signal, and drive the fan to work and adjust a speed of the fan according to the fan control signal. ### Claim 10 (depends on 9) A fan and lamp system, comprising the fan and lamp device of claim 9 and an external controller for controlling a working state of the fan and lamp device.