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Fundamentals
Voltage Divider
Ohm's Law
LED Series Resistor
Parallel Resistors
Power Dissipation
Filters & Timing
RC Time Constant
RC Low-Pass Filter
RC High-Pass Filter
LC Resonant Frequency
555 Timer — Astable
555 Timer — Monostable
Capacitor Impedance
PWM Duty Cycle
Op-Amps
Op-Amp Inverting Gain
Op-Amp Non-Inverting Gain
Power Conversion
Buck Converter Inductor
Boost Converter Inductor
LM317 Voltage Regulator
Linear Reg Dropout Power
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Dead-Time Calculator
PCB Layout
PCB Trace Width
Via Current Capacity
Trace Impedance
Thermal & Power
Heatsink Thermal Resistance
Battery Life
Digital & Interface
I²C Pull-Up Resistor
ADC Resolution
Wheatstone Bridge
Thermal & Power
Heatsink Thermal Resistance
Required heatsink-to-ambient thermal resistance θsa.
f(x)
θsa = (Tj − Ta)/P − θjc − θcs
Max Junction Temp
°C
Ambient Temp
°C
Power Dissipated
mW
W
kW
θjc (°C/W)
°C/W
θcs (°C/W)
°C/W
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