Wednesday, March 8, 2023

Eskom Loadshedding Solutions - Simple Small Projects: Step Down Power Supply Module Project by Christi ZS4CGR

Here is another Simple Small Project this time by Christi ZS4CGR.(Listen to audio files below.)

 

8V - 35V to 5V 8A power supply step-down module 4 Port USB output

Description and Specs:

1. 4 independent dedicated charging management IC, can effectively support a variety of mobile phones for maximum current charging, fast charging, safe and reliable.

2. The charging identification IC is compatible with Apple's full range of Android products, and most mobile phones can achieve the fastest charging speed.

3. Support 4 channels of USB and 2A current charging at the same time, the current is large and the charging is fast, and the total output current can reach 8A.

4. Input adopts MOS tube reverse connection protection to maximize conversion efficiency and reduce loss.

5. Output with over-voltage protection to see and effectively protect the phone.

6.8-35V ultra-wide input voltage, 12V 24V car can be perfectly supported.

7. Synchronous rectification scheme can effectively reduce heat generation and improve efficiency, and the efficiency can reach up to 96%.

8. The industry's advanced flat line high current inductance, large current and small heat generation, high conversion efficiency.

9.4 high-quality chip capacitors, and then increase the capacity of MLCC capacitors, the output ripple is lower, and the interference is smaller.

10. High-quality double-layer gold-plated USB port, the life is twice that of ordinary USB.

11. The default delivery is about 5.2V output voltage.

Module parameters:

    Input voltage: DC 8-35V
    Input current: 5.5A
    Output voltage: 5.2V
    Output current: total maximum 8A, current adaptive, mobile phone single port charging up to 2A.
    Dynamic response speed: 300us (load flow change 5%)
    Conversion efficiency: 95% (12V to 5.2V3.5A measured, efficiency is related to differential pressure and load size.)
    Load regulation rate: 0.2-0.3% (10%-50% load measured by 12V input)
    Ripple & Noise: 120mVP-P (20MHz bandwidth 12V to 5.2V3A measured)
    Switching frequency: 100KHz
    No-load current: 18mA (12V car 5V measured)
    Wiring method: IN input OUT input Terminal block DC seat
    Fixed mode: M3*1 M2*2
    Net weight: about 36 grams

Supporting device:

USB-powered devices such as cell phones, digital cameras, tablets, navigators, and driving recorders. It can charge 4 mobile phones at the same time, and the total current of 4 channels is 8A.

A variety of input and output methods, support for terminal input, DC block input, output support 4 * USB output, terminal output 5V.

Physical dimension:

54 (long) * 39 (wide) * 21 (height) mm (including USB port)

Pin mode:

VIN+ input positive, GND common ground, OUT+ output positive

Link to Rabtron:  Click HERE

Images:  Click on images for larger view.

 






 

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