To identify and research about the DC-DC Booster circuit.
Analysis/Procedure:
Figure 5: Basic schematic DC-DC booster converter circuit
DC-to-DC power converter is use in this project since the output of an thermoelectric module depends on the different temperature that generate on hot side and cold side, so the value output might be is smaller. By using with an output voltage greater than its input voltage means that the input voltage can be boost. DC-to-DC power converter It is a class of switched-mode power supply (SMPS) containing at least two semiconductor switches (a diode and a transistor) and at least one energy storage element, a capacitor, inductor, or the two in combination. Filters made of capacitors (sometimes in combination with inductors) are normally added to the output of the converter to reduce output voltage ripple. Power for the boost converter can come from any suitable DC sources, such as batteries, solar panels, rectifiers and DC generators. A process that changes one DC voltage to a different DC voltage is called DC to DC conversion. A boost converter is sometimes called a step-up converter since it “steps up” the source voltage. Since power (P=IV) must be conserved, the output current is lower than the source current.
Conclusion:
In conclusion, I need to step-up the voltage and current from thermoelectric module at least 5V, 100mA to USB port in case the output from thermoelectric module are too small but there are several problems which I will be facing:
- How efficiency the DC-DC booster and how much the value of load current that can generate at output 5V?
- How much that minimum input can be step-up to DC-DC booster circuit?
- How much start-up voltage at the load?
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