3月20日的Ultimate Calculator应用程序分析

Only available in English. Comprehensive collection of electronics calculators, tools and reference tables. Ultimate Calculator Pro is a utility application consisting of 157 calculators, conversions, reference tables, pin outs; and a basic pocket calculator. Calculators: DC Circuits: • Ohm`s Law • Voltage divider - resistive • LED resistor • RL transient circuits • RC transient circuits • Wheatstone bridge • Battery life AC Circuits: • Reactance • Impedance • Star Delta Transformation • AC Power • Voltage divider - capacitive Power Supply: • Transformer ratios • Rectifiers • Capacitor filter • Transformer efficiency • Voltage regulator - LM317 • Voltage regulator - Zener diode Amplification: • Slew Rate • Gain | Ratio • Non-Inverting Amplifier • Inverting Amplifier • Differential Amplifier • Inverting Summing Amplifier Filters: • RC filter – passive • LC filter – passive • RL filter – passive Semiconductors: • Series Circuits • Parallel Circuits • Capacitors • Inductors • Diodes • 555 Timer • Air Core Inductors • LM 3914 Display driver • LM 3915/6 Display driver Identification: • Resistor – color codes • Inductor – color codes • Capacitor – printed • Fuse, glass – color codes • Diodes • 7-Segment display Physics: • Coulomb`s Law • Magnetism • Joules Law – heating • Electrical energy Geometry: • Area (rectangle, triangle, circle, trapezoid, ellipse, square, parallelogram, sector) • Surface area (cylinder, sphere, cube, cone) • Volume (rectangle, cylinder, sphere) Radiation: • Electromagnetic wave (wavelength, frequency, period) • Propagation delay (distance vs. time) • Resonance (frequency, inductance, capacitance) • Radiated power (vs. VSWR) • Air core inductors (inductance, turns) RF Link: • Free space path loss (loss, distance) • Link budget (RSSI, fade margin) • Fresnel zone (1st, max, 60%, Er) RF Base Station: • Transmission line (Tx, Att, Pout) • EIRP ERP (effective radiated power) • Antenna down-tilt – angle (angle, distance) • Antenna down-tilt – coverage (inner & outer radius) Radar: • Power density (W/m²) • Maximum range (distance) Losses: • Attenuators (Pi, Tee) • VSWR (voltage standing wave ratio) • Reflection coefficient (Rho) • Return loss (dB) • Mismatch loss (dB) Converters: • Angle • Area • Cooking • Current (RF) • Distance | Length • Energy • Field strength (RF) • Fuel consumption • Mass • Number base • Power • Power (RF) • Pressure • Si units • Sine wave • Speed • Storage • Temperature • Terminated (RF) • Time • Torque • Voltage (RF) • Volume Reference: • SI unit prefixes • Logic gates • 74xx ic • ASCII • Abbreviations • Schematic symbols • Ingress protection • Decibel suffixes • RF Spectrum • Amateur band plan – IARU region 1 • Amateur Q codes • Phonetic alphabet (NATO) • IT Acronyms • Units of measure Pin out: • Audio/video  RCA connector  Jack - TS  Jack - TRS  Jack – TRRS  Jack – TRS color codes  SCART  VGA  DIN  DVI  DVI mini  DVI types  HDMI type A • Computer  USB - type A and B  USB - mini and micro  Serial - DE9  Serial - DB25  PS2  AT keyboard  SATA – data  SATA – power  Molex – atx power  Molex – power  USB-C • Gaming  Game/MIDI port • Boards • Raspberry Pi – GPIO • Arduino UNO • Components • Led – 2 pin • Led – RGB • Regulator – 78xx/79xx • Regulator – LM317  Display – LED 7 segment  Display - LCD 16 x 2 (1602)  Display - LCD 16 x 4 (1604)  Display driver – LM391x  Transistor – TO-92 • Microcontroller  Atmega 8 - DIP  Atmega 8 - MLF  Atmega 8 - TQFP  Atmega 328 - DIP  Atmega 328 - TQFP  Atmega 328 - MLF  Atmega 2560  Atmega 8u2 - QFN  Atmega 8u2 - TQFP  Atmega 16u2 - QFN  Atmega 16u2 - TQFP  Atmega 32u2 - QFN  Atmega 32u2 - TQFP • Miscellaneous  OBD II  Memory card – SD  Memory card – mini SD  Memory card – micro SD