Dynamic AC Bias

See Q point and ac output change dynamically as you vary key circuit elements.

Nathan Chao · appinventor.ai_guantze.CEacBJTbias

Not rated yet 10+ downloads v2.3 2.9 MB Android 4.0+ PEGI 3 · Everyone

Download APK 2.9 MB All versions

At a glance

Latest version: v2.3 (3)
Updated: May 13, 2020 (6 years ago)
APK size: 2.9 MB
Requires: Android 4.0+ (API 14)
CPU support: Any (no native code)
Category: Education (app)
Permissions: 4 (1 sensitive)
Developer contact: [email protected]

About this APK

Dynamic AC Bias is an app by Nathan Chao in the Education category. It has no native code, so it runs on any Android processor.

It asks for 4 permissions, 1 of them sensitive: modify shared storage.

What's new in v2.3

improved graphics appearance for tablets

Description

From the listing uploaded by “emilnet87”.

A complete BJT Transistor AC bias calculations tutorial which allows students to see exactly how changing circuit values affect the Q point and how Q point affects the output ac waveform. You can seen when both output cutoff and clipping can occur. The app allows you to change any cirucuit value in a voltage divider bias circuit.

Security & authenticity

Security rating: Unknown

Signing certificate

Certificate issued to “AppInventor for Android” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

Developer signature not checked yet May 13, 2020
Antivirus scan passed Jan 7, 2021
Signed by[email protected], O=AppInventor for Android, C=US
Signing certificate (SHA-1)C8:6D:EA:93:E5:21:04:E3:E0:88:25:8B:7C:C9:EF:D3:66:6C:33:94
File MD526044655ac54d0e24a46520735c9e924
Uploaded by “emilnet87” Bronze tier · 1,060 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (4)

Dynamic AC Bias requests 4 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Full network access android.permission.INTERNET
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Wi-Fi android.hardware.wifi

Dynamic AC Bias APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Dynamic AC Bias APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. After downloading, check that the file's MD5 is 26044655ac54d0e24a46520735c9e924.