Bridge tube +13005 drive pipe, carrying generator DIY is as simple as

One day, the landlord went to buy vegetables, saw a discarded mahjong machine, so I tally dragged it back (I really didn't collect waste), and then began to understand this mahjong machine. The electronic part of the mahjong machine is very simple, and a model of domestic single-chip as the core, plus a complex mechanical transmission portion. Three down five except, take out our protagonist: permanent magnet motor. Found a long screw (20cm), found a turntable, made a hook, so a simple AC motor was done. Preliminary test with electric pens, there is a voltage of 200V or more. Then toss this generator. Now the motor is generated or an alternating electricity, the voltage is high, I have to think about the way, get a regulator module. The first idea is from the charger, dismantling a mobile phone charger, looking at the main power devices and circuit structure, very easy to find the corresponding schematic: This schematic is too simple, we have to modify it, check the relevant Datasheet, found that the Q113001 this pipe drive current is only about 500mA, weak. So I went to find a 13005 driver, the drive current up to 1 to 2A. Also, the rectification efficiency of this circuit is too low, only one whole flow tube DIN4007, decisively find a bridge rectifier instead. In addition, worried that the voltage fluctuations of the generator are too large, and the circuit is not eliminated, so it adds a π-type filter circuit. Haha, the current circuit is properly. Here is a rectifier actuator: The generator DIY will tell a section, but now I don't dare to charge the phone because the output voltage characteristics are not verified. So I rolled my little donkey and go straight to the company's laboratory. Come to the company, because it is on Sunday, only a few people are there. Called a brother to help, tested it: no load, the bridge rectifier is 400V, the load is reduced to 200V, the USB output port is stable in 5.53V to 5.6V, the up and down fluctuance does not exceed 0.1V, this performance It's just so that I am surprised! Be Be Article source network

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