1, CE (pin 8) chip can be input end. High input level is active. TP4056 is a complete single lithium-ion battery with constant current/constant voltage linear charger. Its SOP8 package with a heat sink on the bottom and the low number of external components make the TP4056 ideal for portable applications. The TP4056 can work with USB power supplies and adapter power supplies.
2, choose. The TP4056 can work with USB power supplies and adapter power supplies. Due to the internal PMOSFET architecture and the anti-reverse charging path, no external isolation diode is required. The thermal feedback automatically adjusts the charging current to limit the chip temperature under high-power operation or high ambient temperature conditions. The charging voltage is fixed at 2V, while the charging current can be set externally via a resistor.
3, in general, all ground wires eventually have to return to the negative terminal of the power supply. At the very least, a reference zero potential. All the places in the picture have one potential, which isIt's all connected.
4, no relationship, please rest assured to use. When the mobile phone charger output 1A just says that the maximum output current is 1A, the charging current of the mobile power supply is determined by the internal charge management chip, 0.5A charging current, it should be used is TP4057 (general mobile power use TP4056, 1A linear charging), the charging current is limited to 0.5A, use the 1a charger to charge it, The maximum charging current is only 0.5a.
5, TP4056 chip manual nominal input voltage is 0V~0V,2 >
1, TP4056 is a single lithium battery charging control board, the maximum current 1200ma. If you charge 4 series of lithium batteries, you need 4 pieces to make a balanced charger. The peripheral components are very simple, do not need to simulate operation, directly press the original chip manual on the line. A treasure is only 3-4 pieces a piece, not worth their own small production.
1, the whole trouble why, it is better to use a lithium battery, with a chargingTreasure's circuit board, plus a human touch switch, and then connected to the LED lamp direct lighting. Much simpler. See picture.
2, the circuit diagram is probably like this, the current limiting resistor resistance value is about tens of euros to hundreds of euros, the battery voltage is normal, the charging circuit is not faulty led will not be destroyed all at once. As long as the positive voltage of about 2 volts at both ends of the led is measured, the led is broken.
3, v battery charging indicator is made as follows: NPN triode as a switching circuit control led circuit diagram: charging circuit low voltage, red LED bright. 10K fetchThe sample potentiometer can arbitrarily adjust the voltage that needs to be controlled, which can be adjusted to the voltage when it is full, so that the green LED is lit, at this time, the red LED is still lit. The supply voltage should be constant voltage.
From the picture given by the questioner, the power amplifier board is used in Japan Sanyo Company LA4635A dual-channel audio power amplifier integrated circuit. ▲LA4635A stereo power amplifier circuit. A solid composed of LA4635ASound amplifier circuit. LA4635A is a high power stereo power amplifier integrated circuit produced by Sanyo Company, its operating voltage range is 5 ~ 22V, the typical operating voltage is 12V.
Yes. Power amplifier template is a power amplifier module that integrates switching power supply and digital power amplifier. In the notice of the template, it is shown that the template has the same functions as the power amplifier component and has all the functions of the power amplifier component. Therefore, the power amplifier template can be used as the power amplifier. The template solves the problem of interference of switching power supply to power amplifier.
You want to use a scrap TV circuit board to change the stereo, hereI think it is difficult and troublesome for a hobbyist. It is easier to weld the electronic components that can be used in the TV and assemble them with the TDA2030. This special audio integration block is very cheap, a few cents a piece, the surrounding components are installed less, the sound quality is good, can drive 6 to 8 inches of 5 to 10 watts of subwoofer, or the speaker on the TV.
CD2611GS can of course be used to do power amplifier, but too troublesome, too cost-effective. Taobao more than its function of the power amplifier board even more than ten yuan.
Actually use the sound circuit of the TV as the power amplifier volume is largerSome are not very convenient, it is more convenient to choose the finished power amplifier board. If you want a dual-channel amplifier, you can use the TDA1521 or LM3886 amplifier board shown above, if you want a mono amplifier, you can use the LM1875 amplifier board.
Yes. The audio output of the LCD TV is connected to the audio input (TV/AUX) of the power amplifier with the lotus cable. The speaker is connected to the group A of the power amplifier output interface, and one red and one black is a sound channel.