产品概要
描述
The STEVAL-ISA147V3 is a digital switch mode AC-DC converter consisting of two power stages: an input semi-bridgeless power factor corrector (SBPFC) controlled by an STM32F051K8, and a regulation stage implemented with an LLC half bridge with synchronous rectification (SR), controlled by an STM32F334C8 microcontroller.
This 500 W AC-DC converter uses the so-called bridgeless PFC topology, with the advantage of lower conduction losses and higher efficiency by eliminating the need for a diode rectifier stage. This choice also allows a reduced component count compared to a standard PFC.
The input stage is typically controlled using an outer voltage loop for bus voltage regulation and an inner control loop to shape the current according to a sinusoidal waveform. The outer loop adjusts the current reference in order to maintain a regulated bus voltage, independent of load or input voltage variations. The output isolation and regulation stage is implemented using a half-bridge LLC topology, operating with constant duty cycle and variable frequency control.
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性能一览
- Input AC voltage: 90 V to 264 V
- Input AC frequency: 45 Hz to 65 Hz
- Nominal power: 500 W
- Output voltage: 12 V
- Semi-Bridgeless PFC stage
- DC-DC stage: resonant LLC with synchronous rectification
- Peak efficiency: 94%
- PFC switching frequency: 60 kHz
- DC-DC switching frequency: 80 kHz to 115 kHz (burst mode above)
- HF transformer isolation voltage: 4 kV
- Cooling: natural convection up to 300 W, forced cooling above 300 W
- PFC control: managed by STM32F051K8
- LLC control: managed by STM32F334C8
- Input short-circuit protection
- Input under/overvoltage protection
- Input under/overfrequency protection
- DC Bus under/overvoltage protection
- Output short-circuit protection
- Output under/overvoltage protection
- Overtemperature protection
- RoHS compliant
特别推荐
所有资源
| Resource title | 版本 | Latest update | Actions | Details | 下載 |
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Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 23 Mar 2016 | 23 Mar 2016 |
BOM (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.1 | 23 Mar 2016 | 23 Mar 2016 |
Schematic Pack (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 23 Mar 2016 | 23 Mar 2016 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA147V3 | Active 产品已量产 | CARD | Industrial | Ecopack2 | - | - | - | |
STEVAL-ISA147V3
Package:
CARDMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA147V3 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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STEVAL-ISA147V3 Active