| Q1 | NMOS | N-MOSFET transistor, drain/source/gate |
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| U1 | Generic OpAmp | Operational amplifier, single, node sequence=1:+ 2:- 3:OUT 4:V+ 5:V- |
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| A1 | PWM | Voltage-dependent Voltage source symbol for simulation only |
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| C1 | 4.7u | Unpolarized capacitor |
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| C2 | 10n | Unpolarized capacitor, small symbol |
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| D1 | D | Diode for simulation or PCB |
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| L1 | 10u | Inductor |
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| R1 | 2.2m | Resistor |
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| R2 | R='time >13m ? 20 : 60' | Resistor |
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| R3 | 1 | Resistor |
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| R4,R8 | 1k | Resistor |
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| R5 | 9.1k | Resistor |
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| R6 | 10k | Resistor |
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| R7 | 20k | Resistor |
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| R9 | 10Meg | Resistor |
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| V1 | VPULSE | Voltage source, pulse |
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| V3 | -0.5 | Voltage source, DC |
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| V4,V5 | 10 | Voltage source, DC |
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| V6 | 0.5 | Voltage source, DC |
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