Product overview
Key Benefits
Description
The STEVAL-DCAC1KCB is a dual-stage digitally controlled DC-AC power inverter evaluation board.
The modular design approach makes it easier for the user to test and debug the various sections involved.
The system consists of a power inverter board, auxiliary power supply board, and a microcontroller board.
The DC-DC step-up conversion is based on a full bridge LLC resonant topology, while the DC-AC conversion is based on an H-bridge inverter.
The LLC resonant circuit is designed to operate at a fixed resonant frequency without regulating the DC-DC converter output voltage, and the open-loop operation.
The AC output voltage is regulated by varying the modulation index (MI) of the H-bridge stage.
The fixed operating frequency of the LLC converter ensures maximum efficiency irrespective of battery voltage and extends the battery back-up time. The DC-DC stage open loop operation also means lower computational load on the microcontroller.
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All features
- 1500 VA digitally controlled power inverter
- Full bridge LLC + full bridge rectification + H-bridge inverter
- LLC working in open-loop at resonant frequency to have maximum efficiency of DC-DC stage
- Output voltage: 230 V ac ± 10%
- Output THD: <5% for load>20% of maximum capability (resistive load)
- Input voltage range: 42 – 54 V dc
- Efficiency: > 93.2% at 50% of load (peak), > 92.1% at 100% of load
- Built-in comprehensive safety mechanisms
- Low and high input voltage cutoff
- Low and high output voltage cutoff
- Output over current/over load protection
- No-load protection
- Input reverse polarity protection
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-DCAC1KCB | Active | CARD | Industrial | Ecopack2 | Yes | - | - | |
STEVAL-DCAC1KCB
Package:
CARDMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-DCAC1KCB | | | distributors No availability of distributors reported, please contact our sales office |
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STEVAL-DCAC1KCB Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors