Hw-133-v1.0 Datasheet -
The is functionally identical to the YL-69 and FC-28. The "v1.0" primarily indicates the PCB layout revision.
Once I have those details, I can:
, the output voltage will mirror the input voltage if the potentiometer is dialed higher than the input supply. Technical Features & Performance Realities High Frequency Performance
Connect your input power supply (e.g., a 12V battery or 24V adapter) to the and IN- pads. Hw-133-v1.0 Datasheet
The official datasheet for HW-133 series adapters can be obtained from:
For high-vibration environments, some users remove the potentiometer and replace it with a fixed resistor to prevent the voltage from drifting due to physical movement.
Safety and compliance badges lined another corner: EMI standards, thermal derating graphs, and a note about RoHS compliance. For Meridian’s product manager, those badges read as approvals; for Leo, they read as a checklist of promises to customers and auditors alike. The regulatory roadmap was a reminder that devices do not exist only in labs — they travel through customs, clinics, and living rooms, and must bow to laws and expectations at each border. The is functionally identical to the YL-69 and FC-28
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that require high current for servos or sensors. RC Models and DIY power banks. ⚠️ Critical Usage Notes
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | DO always HIGH (1) | Sensitivity too low | Turn potentiometer clockwise | | DO always LOW (0) | Short between probe traces or sensitivity too high | Clean probe with alcohol; turn potentiometer counter-clockwise | | AO reads 0 always | Broken wire or probe not connected | Check jumper between probe and control board | | Erratic readings | Power supply noise | Add a 100µF capacitor between VCC and GND | | No LED when powered | Reversed VCC/GND | Disconnect immediately; check wiring | For Meridian’s product manager, those badges read as
: It operates at a switching frequency of 150 kHz , allowing for smaller filter components and an efficiency rate generally between 80% and 92% depending on the voltage differential. Common Use Cases
Due to its small size and high power output, the HW-133-V1.0 is used extensively in:
Positioned adjacent to the inductor to safely redirect current recirculations during the switching intervals.