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Power
Digi-Key – High-efficiency solar battery charger with embedded MPPT algorithm (SPV1040T)
Jan 24 2012 - Power [More Power Articles]Digi-Key can now supply the STMicroelectronics SPV1040, a high-efficiency, low-power, low-voltage DC-DC step-up converter that maximizes the energy transferred from the solar panel to the load using an embedded MPPT algorithm. It is based on a perturb-and-observe method which applies a duty cycle variation to a PWM signal according to the input power trend.
Furthermore, the device ‘guarantees’ the safety of the application by implementing either over-current or over-temperature protection and regulating the battery voltage at any time.
The 0.3V start-up input voltage is well suited to any portable application where only a few photovoltaic power cells are used, says the company.
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