The application of Ouchuang DC-DC power supply chip and Chenghua 40V N+P dual MOS tube in ceiling fan lamp
Ceiling fan lamp is also called decorative ceiling fan, it is the perfect combination of lamp and ceiling fan, not only with the decoration of the lamp, but also with the practicality of the fan, the perfect embodiment of classical and modern, and is widely used in daily life.
Ceiling fan lights are mainly reflected in the following points:
1.The operation is simple and labor-saving, and all functions can be achieved by pressing the remote control lightly;
2.One machine with multiple functions, integrating functions such as fan, lighting (cold and warm colors);
3.It looks beautiful and can be used as a home decoration in a dining room.
With the development of society, people have put forward higher requirements for the quality, comfort, energy saving and consumption reduction of ceiling fan lamp products. From a technical point of view, share the application of Eurotron DC-DC power supply chip and Chenghua 40V N+P dual MOS tube on ceiling fan lights.
First, the top ten brands of ceiling fan lamps in China.
Second, the ceiling fan lamp PCB control board project description
The controller of the ceiling fan light is mainly divided into the following parts. Here, the N+P dual MOS tube of the Chenghua brand and the DC-DC chip of the Ouchuang Xin brand are used to decompose and share the PCB controller in the form of **.
PS: Chenghua Electronics Co., Ltd. (Chenghua CH brand) mainly serves DC or AC-DC powered LED lighting, motor drive, power management and other application solutions with medium and low voltage MOS tubes and diode products.
Ouchuang Semiconductors (OCX brand) mainly uses DC-DC constant current chips and DC-DC power management IC chips to serve DC or AC-DC power supply LED lighting, motor drive, power management and other application solutions).
1.Ceiling fan light PCB control board isolation scheme introduction:
The whole ceiling fan light control board is mainly composed of high-voltage power supply end, low-voltage power supply end, relay, stepper motor or brushless motor, single-chip microcomputer, LED lighting, transceiver remote control, buzzer, Bluetooth module, etc.
2.Workaround:
1) The output of the pre-stage isolation constant voltage is 36V 45V, and the DC-DC step-down constant voltage chip is used to reduce the voltage to 24V for motor drive in power management.
2) In view of the current mainstream high-speed brushless motor drive, CH30NP04SN 40V DFN5X6 package N+P dual MOS tube is used as the brushless motor three-phase bridge.
3) The LED lighting driver 36V output terminal uses 60V withstand voltage OC5022B or OC5260 step-down constant current IC chip to make a power of about 20W.
4) LED lighting color mixing needs to be connected to the control module or remote control.
The customer's physical board** is as follows:
IIIIntroduction to the performance of some modules
1.The OC58652 is powered from 36V step-down to 24V 1Test results for 5a.
2.RF433 wireless transmitter chip.
3.OC5260 OC522B main lighting step-down constant current LED driver IC.
4.OC7533 Linear Buck LDO Power Supply to MCU