PD and QC Charger Trigger

User Manual:  Production and R&D Friendly PD and QC Charger Trigger Device

Model: VS-Lab01 

1. Overview

This smart Trigger Device allows you to extract selected high-power DC voltage rails—such as 5V, 9V, 12V, 15V, and 20V—from any compatible USB-PD or Quick Charge (QC) Type-C power bank or wall charger.

2. Key Features

• Multi-Voltage Output Trigger with LED Indication:   5V, 9V, 12V, 15V, or 20V DC output rails.

• Over voltage Protection with Alert Buzzer.  Device easily survive on overvoltage (~60V) and alarm will activate when voltage is greater than 21.5V.

• OLED Display (Optional): Real-time live readings for Voltage (V) and Current (A).

• Dual Operating Modes: Dedicated Auto-Scan and Manual Selection modes.

• Display Power Saver: Dedicated toggle button to turn the screen ON/OFF without interrupting output power.

• Status LED Indicators: Clear visual indicators for active operating modes and active high-voltage rails (5V/ 9V/ 12/ 15V/ 20V).

• Multi Input and Output Ports: 3 Input and 3 Output Port Option (use 1 port at a time).

• DC Auxiliary Power supply feature (9V -18V): With this feature device will not drop Charger voltage and circuit will be protected on any surge voltage. 

3. Getting Started


Plaintext

 [ AUTO MODE LED ] ── Active during automatic voltage scanning
 [ MANUAL MODE LED ] ─ Active during fixed voltage selection

 [ 5V LED ] ──────── Illuminates when 5V output rail is active

 [ 9V LED ] ──────── Illuminates when 9V output rail is active

 [ 12V LED ] ──────── Illuminates when 12V output rail is active
 [ 15V LED ] ──────── Illuminates when 15V output rail is active

 [ 20V LED ] ──────── Illuminates when 20V output rail is active

 [ DISPLAY BUTTON ] ─ Press for 3S to toggle screen ON / OFF

Step 1: Connecting Input Power

1. Connect a USB Type-C cable from a compatible USB-PD/QC charger or power bank into the module's Type-C Input Port.

2. Upon plugging in, the OLED display turns ON instantly and shows the default boot status and initial voltage reading.

Step 2: Connecting Your Load

• Connect your external project, circuit, or device to the module's Output Screw Terminals / Connectors.

4. Controls & Operating Instructions

A. Display Monitoring & Power Control

• Live Readouts: The screen continuously updates real-time output Voltage ($V$) and load Current ($A$).

• Display ON/OFF Switch:

  • Press the Display Push Button for 3S to switch off the screen during extended tests to save energy or prevent glare.

  • Background Safety: Turning off the display does not cut power to your load. The device continues delivering output power and monitoring internal safety parameters in the background.

  • Press the button again to turn the screen back ON.

B. Mode Selection & Voltage Control

1. Auto Mode

• Indicator: The AUTO MODE LED lights up.

• Function: In this mode, the device automatically scans through all supported power profiles (5V $\rightarrow$ 9V $\rightarrow$ 12V $\rightarrow$ 15V $\rightarrow$ 20V) offered by the connected charger.

2. Manual Mode

• Indicator: The MANUAL MODE LED lights up.

• Function: In this mode, you can manually step through specific voltage levels using the voltage selector buttons.

• Status LEDs    

1. 5V LED: Illuminates when the 5V rail is locked and active.
   
   

2. 9V LED: Illuminates when the 9V rail is locked and active.

3. 12V LED: Illuminates when the 12V rail is locked and active.

4. 15V LED: Illuminates when the 15V rail is locked and active.

5. 20V LED: Illuminates when the 20V rail is locked and active.

5. Step-by-Step Voltage Switching Test Procedure

To perform a complete voltage switching test on a USB charger:

1. Plug the module into the USB-PD charger via the Type-C port.

2. Press the Mode Selection Button until the Manual Mode LED illuminates.

3. Use the voltage switch button to step through each output level sequentially: 5V $\rightarrow$ 9V $\rightarrow$ 12V $\rightarrow$ 15V $\rightarrow$ 20V.

4. Observe the live display readout at each step to confirm the charger steps up its output rail accurately.

5. If a charger does not support a requested voltage (e.g., a 15V maximum power bank requested for 20V), the device will safely drop back to the highest available lower rail.

6. Safety & Best Practices

• Verify Voltage Before Connecting Loads: Always check the selected output voltage on the display or status LEDs before connecting sensitive electronic devices to the output terminals.

• Respect Current Limits: Ensure your connected load does not exceed the maximum current rating ($A$) specified by your USB charger.

• Avoid Output Short Circuits: Ensure positive and negative output wire leads do not touch while power is active
  
  
  
  
  
  Contact for Purchase :  
  VEDYS TECHNOLOGIES PVT. LTD.

  Address: -
  Plot No. 100, First Floor,
  Anand Industrial Estate, Mohan Nagar,
  Ghaziabad, Uttar Pradesh 201007
  India
  GSTN - 09AAECV9792R1ZZ
  Phone

  Phone:  +91 9897676695
  Email:  shubhank@vedys.com   &    Lab1@vedys.com

  
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