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  • wind solar hybrid charge controller
    The Latest Privilege Version MPPT Wind Solar Hybrid Charge Controller With Wifi/ GPRS Monitor

    > Remote Monitoring by 3 ways: PC monitoring; WIFI by mobile phone; GPRS by mobile phone. >This new wind solar hybrid controller is special design for 0-800w wind and 0-600w solar panels for wind >solar street light or home wind solar complementary system. >Appearance is elegant, operations are easy. Uses a custom digital LCD screen can see solar panel ,wind turbine, battery status and four key operation mode. The user to use simple and easy to use, popular and  >The inner circuit board of the controller is sprayed to prevent dust, moisture and static electricity, which can effectively prolong the controller' service life. >This controller can workable to Gel, Lead-acid, Ternary lithium battery and Lithium iron phosphate battery. >Lightning counter-attack, solar charger, over-voltage automatic braking, storage battery reverse connect and open protection, etc.

  • MPPT solar charge controller
    Mini MPPT Solar Charge Controller 10amp 20amp 30amp for solar power system

    Latest JN-MPPT-Mini MPPT solar charge controller ranges from 10amp 20amp 30amp with mini smart design for various use purpose . The battery system voltage is 12v 24v 48v auto recognize and max. PV input can be 150V. High charge efficiency is above 99.8% which is much cost-effective for project.

  • MPPT solar charge controller
    Latest MPPT Solar Charge Controller 30amp 40amp 50amp for solar power system

    Latest JN-MPPT-AL MPPT solar charge controller ranges from 30amp 40amp 50amp which are used for solar panel system . The battery system voltage is 12v 24v 48v auto recognize and max. PV input can be 150V. High charge efficiency is above 99.8% which is much cost-effective for project.

  • PWM Solar Charge Controller
    Lastest Design PWM Solar Charge Controller 100A 24V 48V 96V 110V 192V 220V 240V

    Latest JND-X series PWM solar charge controller is used in solar off-grid system (independent system), especially suitable for small off-grid solar power generation control system, which automatically adjusts charging and discharging. The battery charging process of the JND-X controller is optimized to extend battery life and improve system performance.

Inverter working principle

2017-07-08

Inverter is a DC to AC transformer, which is actually a voltage inversion process.

The converter is a 12V dc output that transforms the ac voltage of the grid into a stable 12V dc, and the inverter is a 12V dc voltage that transforms the Adapter output to high voltage alternating current with high frequency. Both parts also use a more widely used pulse width modulation (PWM) technique. The core part is a PWM integrated controller, the Adapter USES UC3842, and the inverter USES the TL5001 chip.TL5001 working voltage range of 3.6 ~ 40 v, the interior has an error amplifier, a regulator, oscillator, a dead zone control of PWM generator, low voltage protection circuit and short circuit protection circuit, etc.

1.Input the interface part: the input part has 3 signals, 12V dc input VIN, work enables voltage ENB and Panel current control signal DIM.VIN is provided by the Adapter, the ENB voltage is supplied by the MCU on the motherboard, the value is 0 or 3V, and when ENB = 0, the inverter does not work, while ENB = 3V, the inverter is in the normal state of work; And DIM voltage supplied by the main board and its change range between 0 ~ 5 v, different DIM value feedback to the PWM controller, inverter for the load current will also be different, DIM value is smaller, the greater the inverter output current.

2. Voltage start circuit: ENB is high current, output high voltage to light up Panel's backlight lamp tube.

3. The PWM controller: consists of the following function: the internal reference voltage, error amplifier, oscillator and PWM, over-voltage protection, under-voltage protection, short circuit protection, out put transistor.

4. Dc transform: composed of MOS switch tube and energy storage inductor voltage conversion circuit, the input pulse drive after a push-pull amplifier amplified MOS tube do switch action, makes the dc voltage to charge and discharge of inductance, so that the other end of the inductance can be ac voltage.

5. LC oscillations and output circuits: the 1600V voltage required for the lamp to be activated and the voltage down to 800V after the lamp is started.

6. Output voltage feedback: when the load is working, the feedback sample voltage is used to stabilize the voltage output of the inverter.

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