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university:courses:electronics:electronics-lab-32 [10 Nov 2017 02:40] – added scope shot for vout and vin on both 220uF and 4.7uF Dann Kristofer Bautistauniversity:courses:electronics:electronics-lab-32 [25 Jan 2019 13:44] – add ltspice files Antoniu Miclaus
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 There are other potential uses for a circuit that essentially allows current flow in only one direction with very low voltage drop across the switch. In battery chargers, where the input power source might be intermittent such as a solar panel or wind turbine generator, it is necessary to prevent the battery from discharging when the input power source is not generating a high enough voltage to charge the battery. Generally a simple Schottky diode is used for this purpose but as was pointed out in the background section this can lead to losses in efficiency. If an op amp with sufficiently low operating supply current is employed this can often be lower than the reverse leakage current in a large Schottky diode. There are other potential uses for a circuit that essentially allows current flow in only one direction with very low voltage drop across the switch. In battery chargers, where the input power source might be intermittent such as a solar panel or wind turbine generator, it is necessary to prevent the battery from discharging when the input power source is not generating a high enough voltage to charge the battery. Generally a simple Schottky diode is used for this purpose but as was pointed out in the background section this can lead to losses in efficiency. If an op amp with sufficiently low operating supply current is employed this can often be lower than the reverse leakage current in a large Schottky diode.
 +
 +**Resources:**
 +  * Fritzing files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/fritzing/active_rectifier_bb | active_rectifier_bb]]
 +  * LTspice files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/ltspice/active_rectifier_ltspice | active_rectifier_ltspice ]]
  
 **For Further Reading:** **For Further Reading:**
university/courses/electronics/electronics-lab-32.txt · Last modified: 25 Jun 2020 22:07 by 127.0.0.1