七麦数据

The app is an excellent reference for electronic engineers. It is useful for both beginners and experienced electronics hobbyists. The app contains more than 130 manuals and calculators covering various areas of electronics.
The Pro version features a favourites option, allowing users to save selected topics for easy access. Additionally, the application supports a full-text search function.
The app’s content is available in the following languages: English, French, German, Indonesian, Italian, Polish, Portuguese, Russian, Spanish, Turkish, and Ukrainian.
This program includes the following calculators and guides:

Basic calculators
-Ohm's law
-Power, voltage and current
-Resistive voltage divider
-Wheatstone Bridge
-RC circuit time constant
-Battery life
-Additional resistor for voltmeter
-Shunt resistor for ammeter.

Resistors
-Resistor color codes
-SMD resistor codes
-EIA-96 encoding
-Selection of standard resistor values
-Series connection of resistors
-Parallel connection of resistors
-E-series

Capacitors
-Ceramic disc capacitor codes
-Film capacitor codes
-Capacitor operating voltage codes
-Color codes of film capacitors
-SMD capacitor codes
-Series connection of capacitors
-Parallel connection of capacitors

Inductors
-Inductor color codes
-SMD inductor codes
-Parallel connection of inductors

Diodes
-Diodes
-Rectifier diodes
-Signal diodes
-Schottky diodes
-Tunnel diodes
-Varicaps
-Zener diodes

Transistors
-Bipolar transistors
-MOSFETs
-JFET transistors
-Unijunction transistors
-Bipolar transistors with insulated gate.
-Darlington transistor pair

Thyristors
-Thyristors
-Lockable thyristors
-IGCT thyristors
-MOS-controlled thyristors

Power supplies
-AC parameters
-Half-wave rectifier
-Full-wave rectifier
-Bridge rectifier
-Quenching capacitor
-Internal resistance of the power supply
-Symmetrical voltage doubling rectifier circuit
-Three-phase half-wave rectifier
-Three-phase bridge rectifier
-Voltage multiplier

Voltage and current regulators
-Voltage regulator on LM317
-Bipolar voltage regulator for LM317 and LM337
-Current source on LM317
-Zener diode reference voltage source
-Temperature compensated reference voltage source
-TL431 regulator
-TL431 regulator with additional transistor

Light Emitting Diodes
-Resistor for one LED
-Resistor for serial connection of LEDs
-Resistor for parallel connection of LEDs
-7 segment LED display
-Decoder for 7-segment displays CD4511

Photocells
-Photodiodes
-Photoresistors
-Phototransistors
-Optocouplers

Operational amplifiers
-Gain of non-inverting op-amp
-Gain of inverting op-amp
-Inverting op-amp with T-bridge in feedback.
-Inverting summing op-amp
-Differential op-amp
-Voltage integrator
-Voltage differentiator
-Voltage comparator

High frequency circuits
-Capacitor reactance
-Inductor reactance
-Convert gain to decibels
-Convert dBm to watts
-T-Attenuator
-Pi attenuator
-L-Attenuator
-Bridge T-attenuator
-Capacitive AC voltage divider
-Inductive voltage divider
-Frequency and wavelengths

Filters
-RC low-pass filter
-RC high-pass filter
-RC bandpass filter
-RL low-pass filter
-RL high-pass filter
-LC low-pass filter
-LC high-pass filter

Multivibrators
-Self-oscillating Multivibrator
-Monostable multivibrator
-Bistable multivibrator
-Multivibrator with diodes

555 Timer
-Astable mode
-Monostable mode
-Bistable mode
-Schmitt trigger
-Connecting LEDs
-Light detector
-Relay control

Logics
-AND logic gate
-OR logic gate
-NOT logic gate
-NAND logic gate
-NOR logic gate
-XOR logic gate
-XNOR logic gate,
-Combination circuits
-Transistor-transistor logic
-Complementary metal-oxide-semiconductor
-Open Collector TTL Logic Gates

The content of the application is updated and supplemented with the release of each new version.

The app is an excellent reference for electronic engineers. It will be useful for both beginners and experienced electronics hobbists. The app contains more than 130 manuals and calculators for various areas of electronics, and also includes a full-text search function.
This program contains the following calculators and guides:

Basic calculators
-Ohm's law
-Power, voltage and current
-Resistive voltage divider
-Wheatstone Bridge
-RC circuit time constant
-Battery life
-Additional resistor for voltmeter
-Shunt resistor for ammeter.

Resistors
-Resistor color codes
-SMD resistor codes
-EIA-96 encoding
-Selection of standard resistor values
-Series connection of resistors
-Parallel connection of resistors
-E-series

Capacitors
-Ceramic disc capacitor codes
-Film capacitor codes
-Capacitor operating voltage codes
-Color codes of film capacitors
-SMD capacitor codes
-Series connection of capacitors
-Parallel connection of capacitors

Inductors
-Inductor color codes
-SMD inductor codes
-Parallel connection of inductors

Diodes
-Diodes
-Rectifier diodes
-Signal diodes
-Schottky diodes
-Tunnel diodes
-Varicaps
-Zener diodes

Transistors
-Bipolar transistors
-MOSFETs
-JFET transistors
-Unijunction transistors
-Bipolar transistors with insulated gate.
-Darlington transistor pair

Thyristors
-Thyristors
-Lockable thyristors
-IGCT thyristors
-MOS-controlled thyristors

Power supplies
-AC parameters
-Half-wave rectifier
-Full-wave rectifier
-Bridge rectifier
-Quenching capacitor
-Internal resistance of the power supply
-Symmetrical voltage doubling rectifier circuit
-Three-phase half-wave rectifier
-Three-phase bridge rectifier
-Voltage multiplier

Voltage and current regulators
-Voltage regulator on LM317
-Bipolar voltage regulator for LM317 and LM337
-Current source on LM317
-Zener diode reference voltage source
-Temperature compensated reference voltage source
-TL431 regulator
-TL431 regulator with additional transistor

Light Emitting Diodes
-Resistor for one LED
-Resistor for serial connection of LEDs
-Resistor for parallel connection of LEDs
-7 segment LED display
-Decoder for 7-segment displays CD4511

Photocells
-Photodiodes
-Photoresistors
-Phototransistors
-Optocouplers

Operational amplifiers
-Gain of non-inverting op-amp
-Gain of inverting op-amp
-Inverting op-amp with T-bridge in feedback.
-Inverting summing op-amp
-Differential op-amp
-Voltage integrator
-Voltage differentiator
-Voltage comparator

High frequency circuits
-Capacitor reactance
-Inductor reactance
-Convert gain to decibels
-Convert dBm to watts
-T-Attenuator
-Pi attenuator
-L-Attenuator
-Bridge T-attenuator
-Capacitive AC voltage divider
-Inductive voltage divider
-Frequency and wavelengths

Filters
-RC low-pass filter
-RC high-pass filter
-RC bandpass filter
-RL low-pass filter
-RL high-pass filter
-LC low-pass filter
-LC high-pass filter

Multivibrators
-Self-oscillating Multivibrator
-Monostable multivibrator
-Bistable multivibrator
-Multivibrator with diodes

555 Timer
-Astable mode
-Monostable mode
-Bistable mode
-Schmitt trigger
-Connecting LEDs
-Light detector
-Relay control

Logics
-AND logic gate
-OR logic gate
-NOT logic gate
-NAND logic gate
-NOR logic gate
-XOR logic gate
-XNOR logic gate,
-Combination circuits
-Transistor-transistor logic
-Complementary metal-oxide-semiconductor
-Open Collector TTL Logic Gates

The content of the application is updated and supplemented with the release of each new version.

The app is an excellent reference for electronic engineers. It will be useful for both beginners and experienced electronics hobbists. The app contains more than 120 manuals and calculators for various areas of electronics, and also includes a full-text search function.
This program contains the following calculators and guides:
Basic calculators
-Ohm's law
-Power, voltage and current
-Resistive voltage divider
-Wheatstone Bridge
-RC circuit time constant
-Battery life
-Additional resistor for voltmeter
-Shunt resistor for ammeter.

Resistors
-Resistor color codes
-SMD resistor codes
-EIA-96 encoding
-Selection of standard resistor values
-Series connection of resistors
-Parallel connection of resistors
-E-series

Capacitors
-Ceramic disc capacitor codes
-Film capacitor codes
-Capacitor operating voltage codes
-Color codes of film capacitors
-SMD capacitor codes
-Series connection of capacitors
-Parallel connection of capacitors

Inductors
-Inductor color codes
-SMD inductor codes
-Parallel connection of inductors

Diodes
-Diodes
-Rectifier diodes
-Signal diodes
-Schottky diodes
-Tunnel diodes
-Varicaps
-Zener diodes

Transistors
-Bipolar transistors
-MOSFETs
-JFET transistors
-Unijunction transistors
-Bipolar transistors with insulated gate.
-Darlington transistor pair

Thyristors
-Thyristors
-Lockable thyristors
-IGCT thyristors
-MOS-controlled thyristors

Power supplies
-AC parameters
-Half-wave rectifier
-Full-wave rectifier
-Bridge rectifier
-Quenching capacitor
-Internal resistance of the power supply
-Symmetrical voltage doubling rectifier circuit
-Three-phase half-wave rectifier
-Three-phase bridge rectifier
-Voltage multiplier

Voltage and current regulators
-Voltage regulator on LM317
-Bipolar voltage regulator for LM317 and LM337
-Current source on LM317
-Zener diode reference voltage source
-Temperature compensated reference voltage source
-TL431 regulator
-TL431 regulator with additional transistor

Light Emitting Diodes
-Resistor for one LED
-Resistor for serial connection of LEDs
-Resistor for parallel connection of LEDs
-7 segment LED display
-Decoder for 7-segment displays CD4511

Photocells
-Photodiodes
-Photoresistors
-Phototransistors
-Optocouplers

Operational amplifiers
-Gain of non-inverting op-amp
-Gain of inverting op-amp
-Inverting op-amp with T-bridge in feedback.
-Inverting summing op-amp
-Differential op-amp
-Voltage integrator
-Voltage differentiator
-Voltage comparator

High frequency circuits
-Capacitor reactance
-Inductor reactance
-Convert gain to decibels
-Convert dBm to watts
-T-Attenuator
-Pi attenuator
-L-Attenuator
-Bridge T-attenuator
-Capacitive AC voltage divider
-Inductive voltage divider
-Frequency and wavelengths

Filters
-RC low-pass filter
-RC high-pass filter
-RC bandpass filter
-RL low-pass filter
-RL high-pass filter
-LC low-pass filter
-LC high-pass filter

Timers
-Self-oscillating Multivibrator
-Monostable multivibrator
-Bistable multivibrator
-Multivibrator with diodes
-NE555 self-oscillating multivibrator
-NE555 мonostable multivibrator

Logics
-AND logic gate
-OR logic gate
-NOT logic gate
-NAND logic gate
-NOR logic gate
-XOR logic gate
-XNOR logic gate,
-Combination circuits
-Transistor-transistor logic
-Complementary metal-oxide-semiconductor
-Open Collector TTL Logic Gates

The content of the application is updated and supplemented with the release of each new version.

This application is a great reference for electronic engineers. It will be useful for both beginners and experienced electronics enthusiasts.
This application contains 110 guides and calculators for various areas of electronics:

Basic
- Omn law
- Power, voltage and current
- Resistive voltage divider
- Wheatstone Bridge
- RC circuit time constant
- Battery Life
- Additional resistor for voltmeter
- Shunt resistor for ammeter

Resistors
- Resistor color codes
- SMD resistor codes
- EIA-96 Encoding
- Standard values finder for resistor
- Series resistors
- Parallel resistors
- E series

Capacitors
- Ceramic disc capacitors codes
- Film capacitors codes
- Capacitor working voltage codes
- Film capacitors color codes
- SMD Tantalum electrolytic capacitors codes
- Series capacitors
- Parallel capacitors

Inductors
- Inductor color codes
- SMD inductors codes
- Series inductors

Diodes
- Diodes
- Rectifier diodes
- Signal diodes
- Schottky diode
- Tunnel diode
- Varicap
- Zener diode

Transistors
- Bipolar transistors
- Metal-Oxide-Semiconductor Field-Effect Transistor
- Junction Field-Effect Transistor
- Unijunction transistor
- Insulated gate bipolar transistor
- Darlington transistor pair

Thyristors
- Thyristors
- Gate Turn-Off Thyristor
- TRIAC
- DIAC
- IGCT thyristor
- MOS-Controlled Thyristor
- Programmable unijunction transistor

PowerSupplies
- AC parameters and rectified value
- Half-wave rectifier
- Full-wave rectifier
- Bridge rectifier
- LM317 Voltage regulator calculator
- LM317 Current Source calculator
- Capacitive power supply
- Zener reference voltage source
- Power source internal resistance

LED
- LED Single Resistor calculator
- LED Series Resistor calculator
- LED Parallel Resistor calculator
- 7-segment LED display
- Decoder (driver) for 7-segment displays CD4511

Photocells
- Photodiode
- Photoresistor
- Phototransistor
- Optocoupler

OP
- Non-Inverting OP Amplifer Gain calculator
- Inverting OP Amplifier Gain calculator
- Inverting amplifier with T-bridge in feedback
- Inverting summing OP Amplifier
- Differential OP amplifier
- OP Voltage integrator
- OP Voltage Differentiator
- OP Voltage comparator

Frequency
- Capacitor reactance
- Reactance of an inductance coil
- Gain conversion to decibels
- dBm to Watts conversion
- T-Attenuator
- Pi-Attenuator
- L-Attenuator
- Bridged T-Attenuator
- Capacitive AC Voltage Divider
- Inductive Voltage Divider
- Frequency and wavelengths

Filters
- RC Low Pass Filter
- RC High Pass Filter
- RC Band pass filter
- RL low-pass filter
- RL high-pass filter
- LC Low Pass Filter
- LC High Pass Filter

Timers
- Astable multivibrator
- Monostable (waiting) multivibrator
- Bistable multivibrator
- NE555 Astable Multivibrator
- NE555 Monostable Multivibrator

Logic
- AND logic gate
- OR logic gate
- NOT logic gate
- NAND logic gate
- NOR logic gate
- XOR logic gate
- XNOR logic gate

This program is designed for light and dark themes, and also is translated into six languages:
- English
- French
- German
- Russian
- Spanish
- Ukrainian

Also, the program contains a full-text search option.

This application is a great reference for electronics engineers. This application contains 86 guides and calculators for various areas of electronics:

AC/DC circuits - Calculation of power circuits, regulators and voltage dividers
- Omn law
- Power, voltage and current
- Resistive voltage divider
- Time constant capacitor calculator
- Battery Life

- Power source internal resistance
- Additional resistor for voltmeter
- Shunt resistor for ammeter

Resistors - Color and digit codes, E-series
- Resistor color codes
- Resistor color codes
- SMD resistor codes
- SMD resistor codes
- EIA-96 Encoding
- Standard values finder for resistors
- Series resistors
- Parallel resistors
- E series

Capacitors - Color and digit codes, capacitors connections
- Ceramic disc capacitors codes
- Ceramic disc capacitors codes
- Film capacitors codes
- Film capacitors codes
- Voltage code
- Film capacitors color codes
- Film capacitors color codes
- SMD Tantalum electrolytic capacitors codes
- SMD Tantalum electrolytic capacitors codes
- Series capacitors
- Parallel capacitors

Inductors - Color and digit codes, inductors connections
- Inductor color codes
- Inductor color codes
- SMD inductors codes
- SMD inductors codes
- Series inductors
- Parallel inductors
- AC parameters and rectified value
- Half-wave rectifier
- Full-wave rectifier
- Bridge rectifier

Power supplies - Rectifiers, stabilizers, current sources
- Capacitive power supply
- LM317 Voltage regulator calculator
- LM317 Current Source calculator
- Zener reference voltage source
- TL431 voltage calculator

LEDs and displays - Connection of LEDs, displays, decoders for displays
- LED Single Resistor calculator
- LED Series Resistor calculator
- LED Parallel Resistor calculator
- 7-segment LED display
- Decoder (driver) for 7-segment displays CD4511

Radio-frequency - Reactance, Decibels/Watts, dividers, attenuators
- Capacitor reactance
- Reactance of an inductance coil
- Gain conversion to decibels
- dBm to Watts conversion
- T-Attenuator
- Pi-Attenuator
- L-Attenuator
- Bridged T-Attenuator
- Capacitive AC Voltage Divider
- Inductive Voltage Divider
- Frequency and wavelengths

Analog filters - Calculation Low/High and Bands passive filters
- RC Low Pass Filter
- RC High Pass Filter
- RC Band pass filter
- RL low pass filter
- RL high pass filter
- LC Low Pass Filter
- LC High Pass Filter

Operating Amplifiers - Calculation of non-Inverting and inverting amplifier gain
- Non-Inverting OP Amplifer Gain calculator
- OP Inverting OP Amplifier Gain calculator
- Inverting OP Amplifier with T-Bridge
- Inverting summing OP Amplifier
- Differential OP amplifier
- OP Voltage integrator
- OP Voltage Differentiator
- OP Voltage comparator

Multivibrators - Circuits that generated a rectangular waveform
- Astable multivibrator
- Monostable (waiting) multivibrator
- Bistable multivibrator
- NE555 Astable Multivibrator
- NE555 Monostable Multivibrator

Logic elements - Logic decisions of NOT, AND, OR etc.
- AND logic gate
- OR logic gate
- NOT logic gate
- NAND logic gate
- NOR logic gate
- XOR logic gate
- XNOR logic gate

This app can switch between light and dark themes, and also is translated into 6 languages:
- English
- French
- German
- Russian
- Spanish
- Ukrainian
Also, it contains full-text search option.
This application's contents and languages are updated in new versions.

This application is a great reference for electronics engineers.
It contains calculators for circuit designers to help quickly solve following calculations:

AC/DC circuits - Calculation of power circuits, regulators and voltage dividers
- Omn law
- Power, voltage and current
- Resistive voltage divider
- Capacitive power supply
- LM317 Voltage regulator calculator
- LM317 Current Source calculator
- Zener reference voltage source
- TL431 voltage calculator
- Time constant capacitor calculator
- Battery Life
- AC parameters and rectified value
- Power source internal resistance
- Additional resistor for voltmeter
- Shunt resistor for ammeter

Resistors - Color and digit codes, E-series
- Resistor color codes
- Resistor color codes
- SMD resistor codes
- SMD resistor codes
- EIA-96 Encoding
- Standard values finder for resistors
- Series resistors
- Parallel resistors
- E series

Capacitors - Color and digit codes, capacitors connections
- Ceramic disc capacitors codes
- Ceramic disc capacitors codes
- Film capacitors codes
- Film capacitors codes
- Voltage code
- Film capacitors color codes
- Film capacitors color codes
- SMD Tantalum electrolytic capacitors codes
- SMD Tantalum electrolytic capacitors codes
- Series capacitors
- Parallel capacitors

Inductors - Color and digit codes, inductors connections
- Inductor color codes
- Inductor color codes
- SMD inductors codes
- SMD inductors codes
- Series inductors
- Parallel inductors

LEDs and displays - Connection of LEDs, displays, decoders for displays
- LED Single Resistor calculator
- LED Series Resistor calculator
- LED Parallel Resistor calculator
- 7-segment LED display
- Decoder (driver) for 7-segment displays CD4511

Radio-frequency - Reactance, Decibels/Watts, dividers, attenuators
- Capacitor reactance
- Reactance of an inductance coil
- Gain conversion to decibels
- dBm to Watts conversion
- T-Attenuator
- Pi-Attenuator
- L-Attenuator
- Bridged T-Attenuator
- Capacitive AC Voltage Divider
- Inductive Voltage Divider
- Frequency and wavelengths

Analog filters - Calculation Low/High and Bands passive filters
- RC Low Pass Filter
- RC High Pass Filter
- RC Band pass filter
- RL low pass filter
- RL high pass filter
- LC Low Pass Filter
- LC High Pass Filter

Operating Amplifiers - Calculation of non-Inverting and inverting amplifier gain
- Non-Inverting OP Amplifer Gain calculator
- OP Inverting OP Amplifier Gain calculator
- Inverting OP Amplifier with T-Bridge
- Inverting summing OP Amplifier
- Differential OP amplifier
- OP Voltage integrator
- OP Voltage Differentiator
- OP Voltage comparator

Multivibrators - Circuits that generated a rectangular waveform
- Astable multivibrator
- Monostable (waiting) multivibrator
- Bistable multivibrator
- NE555 Astable Multivibrator
- NE555 Monostable Multivibrator

Logic elements - Logic decisions of NOT, AND, OR etc.
- AND logic gate
- OR logic gate
- NOT logic gate
- NAND logic gate
- NOR logic gate
- XOR logic gate
- XNOR logic gate

This application contains 82 guides and calculators for various areas of electronics.
it can switch between light and dark themes, and also is translated into 6 languages:
- English
- French
- German
- Russian
- Spanish
- Ukrainian
This application's contents and languages are updated in new versions.