PowerBaby-100 is a simple and practical USB Type-C PD 3.0-based power supply that efficiently delivers up to 100 watts. It features a current limiter, short-circuit protection, and an integrated voltmeter. It is compatible with standard-size (MB102-type) breadboards.

PowerBaby-100 is a safe and reliable method of powering experimental circuits without a bulky bench supply. It’s made for students, hobbyists, and engineers who experiment with and prototype electronic circuits.

Power Up Your Prototypes

PowerBaby-100 is made for prototyping and experimentation. It is ideal to be used in classroom, workshop, and lab environments. Students can safely power their circuits without the need of bulky and expensive bench power supplies. Prototypes can be powered on the go and in exhibitions using the commonly available USB-C chargers for laptops and mobile phones.

PowerBaby-100 is compact enough to fit in enclosures and potentially be used to safely power permanent installations. By making it open source, we enable tinkerers to change configuration resistors and capacitors to tune it to their preference.

Features & Specifications

• Input: USB Type-C, PD 3.0
• Outputs:
• 2.54 mm pitch 2x2 male header connector
• Terminal block connector
• PD request options:
• 5 V, 9 V, 12 V, 15 V, 20 V
• 1 A - 5 A (steps of 0.5 A)
• Idle current: 6 mA (standby), 11-23 mA (on)
• Current limiter range: 0.50 A - 5.25 A (steps of 0.25 A, ±5%)
• Absolute max current: 5.5 A
• Allowed current transients: ~20 ms
• Maximum continuous power: 100 W
• Under-voltage trip: 4.5 V
• Over-voltage trip: 22.5 V
• Display: 3-digit 7-segment LED
• Dimensions (LxWxH): 55 x 45 x 24 mm (2.17 x 1.77 x 0.94 in)

Note: Power delivery capabilities depend on the source (USB-C charger) and the cable. A USB Type-C-to-C cable with an E-marker chip is required for requesting more than 3 A, along with a capable USB Power Delivery source.

Open Source

Powerbaby-100 is open hardware, made available under the CERN OHL W 2.0 license. We’ve posted a schematic and bill of materials in our GitHub repo.

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