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OPA197IDBVR
Operational amplifier for driving the gate of the main FET.
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OPA365AIDBVR
Amplifier and Linear ICs / Operational Amplifiers, used for the differential voltmeter.
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INA225AIDGKR
Programmable gain current shunt monitor used for the ammeter.
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1 |
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ADS1115IDGSR
Data Converters / Analog to Digital Converter ICs (ADCs). This digitizes voltage, current and temperature of the main FET.
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1 |
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AD5693RBRMZ
DAC. Used for setting constant voltage and constant current.
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1 |
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MAX4619EUE+
Switches and Multiplexers / Analog Switches and Multiplexers. This routes analog signals to select constant voltage or constant current mode. It also switches feedback compensation so the load is very stable in both modes.
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1 |
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TS5A3166DCKR
Switches and Multiplexers / Analog Switches and Multiplexers. Used to create two ranges for the voltmeter.
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1 |
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TLV2313IDGKR
Operational amplifier to make a small bias voltage so the rail-to-rail amps operate in their linear range. This greatly improves linearity near zero voltage and current. Also used as a current source for temperature measuring thermistor.
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1 |
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LM2766M6
Power Management ICs / Switching Regulators and Controllers. Doubles the 5V power rail from Arduino so the main FET can fully open.
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1 |
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WSL3637
Resistors (Fixed) / Current Sense. Four-terminal sensing resistor for accurate current sensing.
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1 |
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IXTH64N10L2; IXTH75N10L2
Discrete Semiconductors / Power Transistors and MOSFETs. FET for linear applications – the heart of MightyWatt R3.
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1 |
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NCP15XH103F03RC
Thermal Management and Protection / Thermistors. This watches the FET and protects it from overheating.
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1 |
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Sunon ME50100V1-A99
Fan pumping 22 cubic metres of air per hour. This is what keeps MightyWatt R3 cool.
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1 |
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Fischer ICKPGA20X20
Heatsink. An essential part of every electronic load.
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