MDConverterCalc

Build with Python 🐍 and KivyMD, MDConverterCalc is a one stop solution to find your dc-dc converter specifications. MDConverterCalc takes some input parameters like converter type (buck, boost or buck-boost), input voltage, output voltage, output resistance, frequency, % input ripple current (optional) and % output ripple voltage to calculate the converter specifications. So make sure to finalize these prerequisite parameters before calculating converter specifications.

Note

Features

• Calculates dc-dc converter specs like inductor value and capacitor values.
• Plots transient response of the dc-dc converter.
• Calculates transfer function of the dc-dc converter.

Important

Dependencies

• Python=3.11 (lower verison may also work)
• Kivy=2.3.0
• KivyMD=2.0.1dev0 (which is the github master version at time of uploading this app)
• numpy
• scipy
• pyrebase4
• firebase-admin
• ConverterPackage
• tf_response.py
• emailverify.py

MDConverterCalc requires ConverterPackage package for calculating converter specifications, it has modules for each converter type. tf_response.py is needed for generating transfer function and transient response. Finally, eamilverify.py is required for verifying email id is valid or not. emailverify.py is module provided by EmailListVerify, which is an email verification service provider. More about it later. firebase-admin is required for authenticating users, more about it later.

Tip

EmailListVerify

To be able to verify emails using emailverify.py you will need an api key to access the EmailListVerify API. To get your api key:

1. Go to https://www.emaillistverify.com/ and create an account.
2. Go to API section and click on New API.
3. A pop will open asking you to enter API name. Enter your preferred name and click create.
4. A new API dashboard will open. Scroll down in API section to copy your API key.
5. In the same section select python language to open a brief guid on how to use the API key.

EmailListVerify Docs: Docs

Firebase Admin

To be able to use the app you will need to make a firebase account and create a project. After creating a project copy the firebaseConfig content for a web app section and paste it the firebase_config variable in the main.py file. Here's how you can get your firebaseConfig content:

1. Click the settings or gear icon besides Project Overview on the left hand panel.
2. From the resulting pop up select Project settings.
3. In Project settings go to the General tab.
4. Scroll down to Your apps section in General tab, and select the Config radio button.
5. From the text window below the Config radio button copy on the firebaseConfig variable content and not the whole syntax. Upcoming section will tell you how to edit and use the content.

You will also need the firebase json key (firebaseConfig also) to initialize the app. To get the firebase json key:

1. Click the settings or gear icon besides Project Overview on the left hand panel.
2. From the resulting pop up select Project settings.
3. In the Project settings go to the Service accounts tab.
4. Scroll down in Service accounts and click on Generate new private key.
5. Save this key 🔑 in the same folder 📂 as of main.py.

Here's how you should use you firebaseConfig and firebase json key:

firebase_config = {
  "apiKey": "************"
  "authDomain": "***************"
  "databaseURL": "https://***********"
  "projectId": "***********"
  "storageBucket": "**********"
  "messagingSenderId": "***********"
  "appId": "**************"
  "measurementId": "***********"
}
cred = credentials.Certificate('firebase_key.json')  # add your firebase json key (keep your firebase json key and main.py file in same directory)
firebase_admin.initialize_app(cred, firebase_config)

Warning

• The firebase_config variable stores a dictionary containing the keys and identifiers for your app, since it is a dictionary the keys needs to be in double qoutes.
• Also there is small bug in the app. To delete a single entry in History tab you need to hold and swipe right on the respective entry. When done so it does delete the entry but in response it also opens the corresponding entry's content in dailog box. This is an undesirable behaviour of the app.

2024-03-29.17-11-18.mp4