Wide voltage input maximum 12W, 220v input maximum 18W.
In summary, we choose TPIC6B to drive the LED lattice.
H192 or 40192 Design a base 4 counter and a base 7 counter, and then display the status through the nixie tube. Switching between the two bases can be achieved by a single pole double throw switch. The key and difficulty lies in designing a 4-base counter and a 7-base counter.
With 74LS192, using the reset method to change to the base 8 counter, when the count to 8, Q3 is 1, as a reset signal to the reset end MR, you can reset back to 0. Therefore, if the maximum number is 7, then Q2Q1Q0=111 is used as the carry C signal through and not gate output low level. Logic diagramThe simulation diagram is as follows.
LS193 synchronous reversible increment/decrement four-bit binary counter Features: the circuit can be fed back and is easily cascaded. That is, the borrow output and carry output are fed back to the subtract count input and add count input of the subsequent counter.
MP1484EN is an imported chip with low voltage and high current. Two replacement chips are recommended for you. FR9884 and ETA1485.
The power management chip may be affected by high voltage, low voltage, overload, overheating, short circuit and other problems, and cause failure or damage. For example, too high a voltage may cause transistors or capacitors inside the chip to burn out, while too low a voltage may cause the chip to fail to function properly.
Please use the standard charger and data cable: different brands of chargers, there are differences in the principle of fast charging, mixed charger may not be able to achieve fast charging function resulting in slow charging. Failure to enter fast charge mode leads to slow charging If your tablet supports fast charge but cannot enter fast charge mode normally, it will leadSlow down the charging speed.
Heating half of the alarm, sometimes do not check the pot, a model of induction cooker sometimes heated half of the alarm, sometimes do not check the pot. The induction cooker turned on the test, found that the low-voltage power supply is normal, the high-voltage power supply 300V is normal, after connecting the furnace coil, boot no-load operation, induction cooker issued a "beep" check signal.
Power module: Receives external power input and generates AC powerIt is converted into direct current and processed by filtering to ensure the stable operation of the circuit. Control module: control the switch, temperature, power and other parameters of the induction cooker, so that the induction cooker can be cooked according to the needs of users.
** Power module - transformer reduces input voltage, rectifier bridge converts AC to DC, filter capacitor smooths DC, voltage regulator circuit ensures power stability. ** Control module - MCU as a command center, through the interaction of buttons and display screen, control relay switch, management of induction cooker operation.
The current carrying element in Figure 1 is a truncated section of 1Ω 3000W electric furnace wire to reduce the rated current, thereby reducing the heating temperature of the furnace wire. The pitch of the 1Ω electric furnace wire is enlarged to increase the heat dissipation effect. If this section of electric furnace wire can be cast into the finished part with heat sink, the effect is more ideal.
Midea circuit diagram Model: TM-S1-01A circuit schematic: TM-S1-01D circuit schematic: ST2118 circuit schematic: Note: The above three circuit diagrams from the Internet. I hope this will help you.
The furnace surface of the induction cooker is a heat-resistant ceramic plate, and the alternating current generates a magnetic field through the coil below the ceramic plateWhen the magnetic field line passes through the bottom of the iron pot, stainless steel pot, etc., eddy currents are generated, and the bottom of the pot is heated rapidly to achieve the purpose of heating food.
1, BK, and BK- are the pin names on the motor line and are commonly used to denote the A and B phases of the motor. In this notation, BK represents phase A and BK- represents phase B. This marking method is usually used in brushless motors or stepper motors to distinguish between different motor pins.
2, this isLCD TVS adjust the backlight, and A-DIM works by voltage adjustment. ADJ and BK on the LCD power supply board mean ADJ is generally 0-3v brightness adjustment, BK backlight open signal, generally standby 0V, boot 3V.
3. In the circuit diagram, mark nc where the capacitance value should be marked: indicates that the capacitor is spare or temporarily not used. This capacitor is sometimes required for device inconsistencies or when the circuit needs to be upgraded.
4, is the backlight control pin. The bk pin of the 5958 chip is used to control the brightness and brightness of the backlight strip driven by the chipOn/off, this pin can receive a low level signal, when the signal is low level, the chip will control the backlight bar to light up, and when the signal is high level, the backlight bar will go out.