Tuesday, September 15, 2020

Circuit schematic of simple fire alarm using NTC Thermistors

Eltronicschool. - There are many fire alarm circuit schematic developed to help people give alarm when fired in some place. One of the circuit schematic of simple fire alarm is using NTC thermistors as it's fire sensor or detection.

In this moment we will show you one circuit schematic of simple fire alarm using NTC thermistor look like Figure 1 below. The main component in this circuit is thermistor for detecting and sensing the fire.

Circuit Schematic
Figure 1. Circuit schematic of simple fire alarm using NTC Thermistors (Source: www.circuitstoday.com)


Component Part
  1. NTC Thermistor
  2. Variable resistor
  3. Resistors
  4. Buzzer
  5. Diode
  6. Capacitors
  7. Transistor
Description

Circuit schematic like in Figure 1 above is Circuit schematic of simple fire alarm using NTC Thermistors. According to Circuitstoday blog describe that the Thermistor resistance controls the voltage across the resistor triggering the transistor switch. As the Thermistor senses an increase in temperature, its resistance decreases, that in turn increases the voltage across the resistor that triggers the transistor switch. The switch triggers the buzzer, hence alerting of a potential fire hazard.

These were some of the basic circuits that use Thermistors. These circuits are developed into advanced circuits to be used in various practical applications. Some of the practical applications include:
  1. Temperature controllers in mobile phone, refrigerators hair dryers etc
  2. Temperature measuring device to monitor temperature of exhaust gas, cylinder head etc.
  3. To monitor temperature to maintain the room temperature at certain desired level.
  4. As a temperature stabilizer in laser diodes and photo elements.

Wednesday, September 9, 2020

Free Download Proteus Professional 8.9 SP2 Build 28501 for Windows with Install Guidance

Eltronicschool. - This is the latest other version of Proteus 8 Professional for electronic designing software that called with Proteus Professional 8.9 SP2 Build 28501 for Windows with Install Guidance.

Proteus Professional 8.9 SP2 Build 28501 for Windows

In here beside we will give you free download of Proteus Professional 8.9 SP2 Build 28501 for Windows, we also will give you guidance on how to install this software easily in your PCor laptop.

Description

This is Proteus 8.9 SP0 Professional Plus Crack for Windows Installation for you who want to create simulation with ISIS and PCB layout design with ARES. Accordingly of Master Kreatif site describe that  is a powerful Computer-Aided Design (CAD) software that was specially designed to help designers build and verify the circuit boards easily. Proteus Professional provides interactive simulations and customizations tools that enable designers to view and edit the properties of every element on the board. It helps you design, test and layout professional PCBs like never before. The design can be edited, simulated, verified, as well as exported. Proteus Design Suite delivers the complete software package for today and tomorrow’s engineers with VSM simulation and new flowchart engine that provide a truly integrated and intuitive development environment.

By using this software you can create a highly complex electrical circuit designs requires not only solid knowledge but also a set of tools to get the job done. Proteus PCB Design enables you to design a PCB which there are very detailed electrical components such as microcontrollers, microprocessors, and other components are often used in electrical circuits.

How to Install 

1. Please download file Proteus Professional 8.9 SP2 Build 28501 from Mediafire

2. Open your file folder in your computer or laptop and Unzip it

3. Open folder and select Proteus 8.9 Sp2 Pro aplication and then click to begin installation process. And follow until finish.



Watch the Video on Youtube

Download 

And now you can click the link below to take free download Proteus Professional 8.9 SP2 Build 28501 for Windows from external server easily.

Tuesday, September 8, 2020

How to Make Electronics Lab Variable Power Supply

Eltronicschool. - In this time, we also want to show you about one project on how to make electronic lab variable power supply using some module that popular in electronic shop. With this project you can buil it your self and also you can publish to other and in the market. So, pelase follow this post.

Image Courtesy of Youtube


Material

1. Universal Box
2. DC Connector
3. ON/OFF Switch
4. DC Volt and Amp meter module
6. Potensiometer
7. Power supply module

Step by Step to Make Electronics Lab Variable Power Supply

To build or Make Electronics Lab Variable Power Supply, please watch the video from Youtube using link below.


How to Download and Install and Make 7 Segments Digit Led Display using Electronics Workbench EWB 5.12

Eltronicschool. - In this time, we also want to show you about one project on how to download, install and make 7 Segments Digit Led Display using Electronics Workbench EWB 5.12 that can help you using this software. In here we will give you link to download this software from other site. So, pelase follow this post.

Image Courtesy of Youtube


Material

1. Electronics Workbench EWB 5.12

Step by Step to Make 7 Segments Digit Led Display using Electronics Workbench EWB 5.12



To download Electronics Workbench EWB 5.12 for Windows system use the link below please.


To build or make Make 7 Segments Digit Led Display using Electronics Workbench EWB 5.12, please watch the video from Youtube using link below.


How to Make Inverter 12V to 220V From ATX PSU

Eltronicschool. - In this time, we also want to show you about one project on how to build or make DC to AC Inverter 12V from Battery to 220V using ATX PSU that can be used to turn on the AC lamp light easily. The main component in this project is 5V transformer from ATX PSU. So, pelase follow this post.

Image Courtesy of Youtube


Component List

1. 5V Transformer from ATX PSU
2. Transistor
3. Resistor
4. Bulb Holder
5. Cable
6. 12 Baterry

Step by Step to Build Make Inverter 12V to 220V From ATX PSU

To build or make Inverter 12V to 220V From ATX PSU, please watch the video from Youtube using link below.


How to Make Mini DC to AC Inverter 1.5V to 220V using Ferrite Transformer

Eltronicschool. - In this time, we want to show you about one project on how to build or make mini DC to AC Inverter 1.5V from Battery to 220V that can be used to turn on the AC lamp light easily. The main component in this project is ferrite transformer that can be found from smartphone charger. So, pelase follow this post.

Image Courtesy of Youtube


Component List

1. Ferrite Transformer
2. Transistor 882N
3. Resistor
4. Bulb Holder
5. Cable

Step by Step to Build Mini DC to AC Inverter 1.5V to 220V using Ferrite Transformer

To build or make Mini DC to AC Inverter 1.5V to 220V using Ferrite Transformer, please watch the video from Youtube using link below.

Robot News - NASA's Perseverance Mars rover has an Earth twin named Optimism by Amanda Kooser

Eltronicschool. - This is one information for you who want to know more about the development of NASA's robot in Mars. So you can follow this article from CNET with the title NASA's Perseverance Mars rover has an Earth twin named Optimism that written by Amanda Kooser.

Image Courtesy of CNET


NASA's Perserverance rover launched in July on a multimonth journey to Mars. It's a bit like sending your kids off to college, except you'll never see them again. But NASA scientists back on Earth can still enjoy the company of Optimism, Perseverance's twin.

The NASA Jet Propulsion Laboratory (JPL) said on Friday that the full-scale engineering model of the rover passed its first driving test on Sept. 1. The test took place in a warehouse, but it positions Optimism for a bigger challenge: tackling the Mars Yard, a simulated Mars landscape located at JPL's facility in California.

"Optimism" is actually an epic acronym that stands for "operational perseverance twin for integration of mechanisms and instruments sent to Mars." The rover is almost identical to Perseverance, right down to the size, driving system and computer brains. 

Image Courtesy of CNET

NASA released a video showing the Earth-bound version of the rover moving into its new home in a garage near the Mars Yard.

Optimism has an important job to do. "To avoid as many unexpected issues as possible after the rover lands on Feb. 18, 2021, the team needs this Earth-bound vehicle system test bed (VSTB) rover to gauge how hardware and software will perform before they transmit commands up to Perseverance on Mars," said NASA.

The new model rover will share space in the Mars Yard with Maggie (Mars automated giant gizmo for integrated engineering), the engineering model that stands in for NASA's Curiosity rover. 

For more article about NASA's Perseverance Mars rover has an Earth twin named Optimism by Amanda Kooser, you can read from original source using link [HERE].

Saturday, September 5, 2020

Circuit Schematic for Teledyne 8703 8-Bit CMOS Analog-to-Digital Converter

Eltronicschool. - When we are said about Analog to Digital Converter (ADC) so there are many types of monolithic analog to digital converters, such as the integrating A/D, integrating A/D with three-stage outputs, and the tracking A/D with latched outputs.

In this time, we will give you the circuit diagram of a Teledyne 8703 8-bit Monolithic CMOS analog to digital converter is given below. It is a 24-pin DIP package. like in Figure 1. below.

Circuit Schematic

Figure 1. Circuit Schematic for Teledyne 8703 8-Bit CMOS Analog-to-Digital Converter (Source: https://www.circuitstoday.com/)

Description

According Circuitstoday site describe that as in the case of monolithics, there are many hybrid A/D converters, such as the successive-approximation A/D with input buffer amplifier, the low-power CMOS A/D, the fast A/D with sample-and-hold, and the ultrafast A/D with input buffer amplifier. Datel Intersil’s hybrid ADC-815MC is a very high speed 8-bit successive-approximation A/D converter. It is capable of 8-bit resolution in only 600 nano seconds. It has a six analog-input voltage range with parallel or serial outputs and requires no calibration. Datel’s ADC-MC8B is an 8-bit monolithic multi-function A/D-D/A converter that operates on a single +5-V supply. It is a complete D/A converter that can be configured as an A/D converter by using an external comparator and a quad two-input Schmitt trigger NAND gate.

Similar to DIGITAL TO ANALOG CONVERTER, specifications such as resolution or nonlinearity are also used for A/D converters. Another important parameter for A/D is conversion time. Conversion time is the time required to convert an analog input into valid digital outputs. Typical applications of A/D converters include microprocessor interfacing, data printing and recording, digital voltmeters, and control of LED or LCD displays.

Friday, September 4, 2020

Circuit Schematic for Switching Regulator Step Up 12V to 24V 1A using LM2585

Eltronicschool. - One of the voltage regulator manufactored by Texas Instrument is LM2585 Adjustable that can be used to build switching regulator step up 12V to 24V 1A like this circuit schematic. LM2585-ADJ was chosen for its simplicity of use, because only requiring minimal external components like resistors and inductor. And additional that NPN switching/power transistor is integrated inside the regulator that able to withstand 3A maximum current and 65V maximum voltage. Switching frequency is defined by internal oscillator and it’s fixed at 100KHz.

And the circuit schematic for switching regulator step up 12V to 24V with 1A using LM2585 can be drawed like in Figure 1. below.

Circuit Schematic

Figure 1. Circuit Schematic for Switching Regulator Step Up 12V to 24V 1A using LM2585 (Source: https://www.electronics-lab.com/)


Component Part

C1 C2 33uF 25V 1Ω 6.3 x 5.4mm UWX1E330MCL1GB 647-UWX1E330MCL1
C3 0.1uF 50V 0Ω 1206 C1206C104J5RACTU 80-C1206C104J5R
C4 1uF 25V 1206 C1206C105K3RACTU 80-C1206C105K3R
C5 C6 220uF 35V 0.15Ω 10 x 10.2mm EEE-FC1V221P 667-EEE-FC1V221P
D1 0.45 V 3A 40V Schottky SMB B340LB-13-F 621-B340LB-F
IC1 LM2585S-ADJ TO-263 LM2585S-ADJ/NOPB 926-LM2585S-ADJ/NOPB
L1 120 uH 0.04Ω 30.5 x 25.4 x 22.1 mm PM2120-121K-RC 542-PM2120-121K-RC
R1 28 KΩ 1206 ERJ-8ENF2802V 667-ERJ-8ENF2802V
R2 R3 1.5 KΩ 1206 ERJ-8ENF1501V 667-ERJ-8ENF1501V
R4 1 KΩ 1206 RT1206FRE07931KL 603-RT1206FRE07931KL
LED1 RED LED 20mA 2.1V 0805 599-0120-007F 645-599-0120-007F

Description

According Electronic-lab site describe the power switch is a 3-A NPN device that can standoff 65 V. Protecting the power switch are current and thermal limiting circuits and an under-voltage lockout circuit. This IC contains a 100-kHz fixed-frequency internal oscillator that permits the use of small magnetics. Other features include soft start mode to reduce in-rush current during start-up, current mode control for improved rejection of input voltage, and output load transients and cycle-by-cycle current limiting. An output voltage tolerance of ±4%, within specified input voltages and output load conditions, is specified for the power supply system.




Schematic is a simple boost topology arrangement based on datasheet. Input capacitors and diode should be placed close enough to the regulator to minimize the inductance effects of PCB traces. IC1, L1, D1, C1,C2 and C5,C6 are the main parts used in voltage conversion. Capacitor C3 is a high-frequency bypass capacitor and should be placed as close to IC1 as possible.All components are selected for their low loss characteristics. So capacitors selected have low ESR and inductor selected has low DC resistance.At maximum output power, there is significant heat produced by IC1 and for that reason, we mounted it directly on the ground plane to achieve maximum heat dissipation.