A Wide Range Low Input Voltage Ripple Maximum Power Tracking Circuit for Solar Vehicles
A technology of maximum power tracking and low input voltage, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, etc., and can solve problems such as limiting the service life of the maximum power tracking system, low service life of electrolytic capacitors, and increased maintenance costs , to achieve the effect of improving the maximum power tracking accuracy, reducing maintenance costs and increasing the service life
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[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0019] Such as figure 2 As shown, this wide-range low input voltage ripple maximum power tracking circuit for solar vehicles, the input and output positive poles A and B are respectively connected to the input terminals of the voltage regulator chip 7805 through diodes Da and Db. When the circuit starts, the input voltage Provide enough voltage for the solar cell module open circuit voltage to start the chip; when the voltage regulator chip is started, the input voltage is controlled to the maximum power voltage (may not be enough to supply power to the controller), and the voltage at the terminal of capacitor C1 is boosted Vin / (1-D), which is higher than the input voltage, supplies power to the input terminal of the voltage regulator chip through the conduction diode Db, and the diode Da is cut off at this time; it can be seen that the self-...
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