DC-DC 高压电源
集形状、贴装和功能于一体的设计：
斯派曼UM 系列的印刷电路板可贴装高压模块，高压模块集形状、贴装和功能于一体，可替代目前市面上使用的电源，同时具有更多功能，价格更具有竞争优势。使用专有的功率转换技术和斯派曼六十多年高压经验，这些基于SMT 高压模块与竞争产品相比，性能更好、可靠性更高、与系统集成更方便、价格更低。
先进的功率转换拓扑技术：
UM 转换器使用专有的零电压切换功率转换拓扑技术，使其具有卓越的效率及低噪声与低纹波。与传统转换拓扑相比辐射大大减少。有效地降低屏蔽邻近电路的需求，甚至不需要屏蔽。
高压输出使用了一个铁氧体磁芯的高压升压变压器供应输出电路。电源在1kV 或更高的运用一组半波科克罗夫特—瓦尔顿电压倍增器去获得指定的高压输出，而较低的电压电源使用一强健的整流和滤波电路。
由于具有固定的高频转换率，其输出电容很小，因此存储能量最低。通过使用宽大的额定浪涌限流电阻和一个快速电流环路，所有电源均受到全面的电弧和短路保护。
控制和调节：
实际输出电压通过一个高阻抗分压器，来输出一个电压反馈信号. 电流反馈信号是通过一个电流传感电阻，在高压输出电路的低端返回输出。这两个精准的对地参考反馈信号，除了外部监测用途外，还用于精确地调节和控制电源。
UM 独特的转换拓扑技术，使得电源能够满电流工作在低阻抗负载甚至一个短路电路中。标准的电源限制在最大额定输出电流的103%。
标准接口：
UM 系列接口提供电流编程能力、正极性、带缓冲、低输出阻抗,电压和电流监测信号( 0 至+4.64Vdc 等于零至额定满量程)。还提供电压编程输入，0 至+4.64Vdc 等于0 至100% 的额定电压。
电流编程允许用户去设置这个电源的电流限制， 从0 至100% 的最大额定电流均可。此功能对于需求小于满输出电流是有用的，如在保护一个敏感的负载的情况下。
缓冲的低阻抗电压和电流监测信号能直接驱动外部电路，同时将负载和传感效应降至最低。这些功能节省了用户的费用和外部接口缓冲电路的实现，同时提高了整个信号的完整性。
标准接口由一排13 个引脚构成，引脚间距为0.1˝。一个传统接口( 7 个引脚，引脚间距为0.2˝ ) 是与目前可用的商业制成相配的，电源能通过订购“L” 选项提供。
机械和环境的考虑因素：
UM 系列是固态封装的、可安装的印刷电路板、塑料壳转换器测量只有2.97˝ X 1.5˝ X 0.83˝ (75.4mm X 38.1mm X 21.1mm)。所有电源使用基于硅灌封材料封装，比环氧树脂封装技术重量更轻。使用两颗独立的、非接地的2-56 机械螺丝把模块安全地安装到印刷电路板，缓解了接口引脚承担的一些应力。提供安装板、支架和法兰安装选项。
合规认证：
符合EMC 2004/108/EC 的标准和低压2006/95/EC的标准。UL/CUL 认证，文件E227588。符合RoHS。
规格
(Ref. 128068-001 REV. P)
Input Voltage:
12Vdc for 4W, 24Vdc for 20W and 30W
Nominal Voltage Range:
11Vdc to 30Vdc for 4W, 23Vdc to 30Vdc for 20W and 30W
Input Current: (typical)
Disabled: 30mA
No load: 90mA
Full load:
4 watt units: 0.5A
20 watt units: 1.0A
30 watt units: 1.5A
Efficiency:
80-85%, typical
Voltage Regulation:
Line: <0.01%
Load: <0.01%
Current Regulation:
Line: <0.01%
Load: <0.01%
Stability:
0.01% per 8 hours, 0.02% per day after 30 min. warmup
Accuracy:
2% on all programming and monitoring, except I Sense 10%
Temperature Coefficient: (typical)
Standard: 100ppm/°C Optional: 25ppm/°C (T Option)
Environmental:
Temperature Range:
Operating: 0°C to 65°C case temperature
Storage: -55°C to 85°C, non operational
Humidity:
10% to 90%, non-condensing.
Cooling:
Convection cooled, typical. 30 watt units operating at full power might require additional cooling to maintain case temperature below 65°C. Methods may include: forced air cooling, use of heat sink or metal case, etc. It is the user’s responsibility to maintain the case temperature below 65°C. Damage to the power supply due to inadequate cooling is considered misuse and repairs will not be covered under warranty.
Dimensions:
2.96. L X 1.49. W X 0.81. H (75.2mm X 37.9mm X 20.6mm)
Weight:
4 oz. (113g), typical
See product PDF for more specification and features.
UM 4W SELECTION TABLE
| Model Number | Output V | Output Current | Low Freq. Ripple %Vp-p @ 1Hz-1kHz | High Freq. Ripple %Vp-p @ 1kHz-1MHz | Output Capacitance | Arc Limiting Resistanc | I Sense Scaling Full Scale Signal | High Voltage Divider Resistance |
|---|---|---|---|---|---|---|---|---|
| UM0.062*4 | 0 to 62.5V | 64mA | 0.030 | 0.028 | 8.8μF | 1Ω | 1.5V | 0.5MΩ |
| UM0.125*4 | 0 to 125V | 32mA | 0.045 | 0.014 | 8.8μF | 4.4Ω | 2.75V | 0.88MΩ |
| UM0.25*4 | 0 to 250V | 16mA | 0.034 | 0.017 | 2.2μF | 20Ω | 4.9V | 1.50MΩ |
| UM0.5*4 | 0 to 500V | 8mA | 0.036 | 0.040 | 0.8μF | 94Ω | 10.1V | 2.65MΩ |
| UM1*4 | 0 to 1KV | 4mA | 0.025 | 0.015 | 0.2μF | 470Ω | 10.75V | 20MΩ |
| UM2*4 | 0 to 2kV | 2mA | 0.022 | 0.015 | 0.097μF | 1.0KΩ | 10.4V | 30MΩ |
| UM4*4 | 0 to 4kV | 1mA | 0.019 | 0.017 | 0.012μF | 9.4KΩ | 11.1V | 100MΩ |
| UM6*4 | 0 to 6kV | 0.67mA | 0.016 | 0.015 | 0.007μF | 20KΩ | 9.9V | 150MΩ |
UM 20W SELECTION TABLE
| Model Number | Output V | Output Current | Low Freq. Ripple %Vp-p @ 1Hz-1kHz | High Freq. Ripple %Vp-p @ 1kHz-1MHz | Output Capacitance | Arc Limiting Resistance | I Sense Scaling Full Scale Signal | High Voltage Divider Resistance |
|---|---|---|---|---|---|---|---|---|
| UM0.062*20 | 0 to 62.5V | 320mA | 1Hz-1kHz 0.060 | 0.088 | 8.8μF | 1Ω | 330mV | 0.5MΩ |
| UM0.125*20 | 0 to 125V | 160mA | 0.067 | 0.044 | 8.8μF | 4.4Ω | 675mV | 0.88MΩ |
| UM0.25*20 | 0 to 250V | 80mA | 0.035 | 0.019 | 2.2μF | 20Ω | 1.135V | 1.50MΩ |
| UM0.5*20 | 0 to 500V | 40mA | 0.041 | 0.040 | 0.8μF | 94Ω | 2.25V | 2.65MΩ |
| UM1*20 | 0 to 1KV | 20mA | 0.039 | 0.095 | 0.2μF | 470Ω | 4.35V | 20MΩ |
| UM2*20 | 0 to 2kV | 10mA | 0.026 | 0.016 | 0.097μF | 1.0KΩ | 6.6V | 30MΩ |
| UM4*20 | 0 to 4kV | 5mA | 0.023 | 0.028 | 0.012μF | 9.4KΩ | 6.65V | 100MΩ |
| UM6*20 | 0 to 6kV | 3.3mA | 0.017 | 0.018 | 0.007μF | 20KΩ | 6.74V | 150MΩ |
UM 30W SELECTION TABLE
| Model Number | Output V | Output Current | Low Freq. Ripple %Vp-p @ 1Hz-1kHz | High Freq. Ripple %Vp-p @ 1kHz-1MHz | Output Capacitance | Arc Limiting Resistance | I Sense Scaling Full Scale Signal | High Voltage Divider Resistance |
|---|---|---|---|---|---|---|---|---|
| UM0.062*30 | 0 to 62.5V | 480mA | 0.075 | 0.112 | 8.8μF | 1Ω | 500mV | 0.5MΩ |
| UM0.125*30 | 0 to 125V | 240mA | 0.075 | 0.056 | 8.8μF | 4.4Ω | 930mV | 0.88MΩ |
| UM0.25*30 | 0 to 250V | 120mA | 0.055 | 0.031 | 2.2μF | 20Ω | 1.65V | 1.50MΩ |
| UM0.5*30 | 0 to 500V | 60mA | 0.085 | 0.041 | 0.8μF | 94Ω | 3.4V | 2.65MΩ |
| UM1*30 | 0 to 1KV | 30mA | 0.032 | 0.171 | 0.2μF | 220Ω | 6.5V | 20MΩ |
| UM2*30 | 0 to 2kV | 15mA | 0.031 | 0.112 | 0.097μF | 470Ω | 9.85V | 30MΩ |
| UM4*30 | 0 to 4kV | 7.5mA | 0.028 | 0.071 | 0.012μF | 4.4KΩ | 9.85V | 100MΩ |
| UM6*30 | 0 to 6kV | 5mA | 0.020 | 0.051 | 0.007μF | 9.4KΩ | 10.0V | 150MΩ |
Note: Total ripple is the sum of the low frequency and high frequency ripple. Grayed text indicates Legacy interface signals.
STANDARD INTERFACE
| Pin | Signal | Parameters |
|---|---|---|
| 1 | Power Ground Return | +12Vdc or +24Vdc power return/HV return |
| 1A | Signature Resistor | Unique Identifying resistor connected to ground |
| 2 | + Power Input | +12Vdc or +24Vdc power input |
| 2A | N/C | |
| 3 | I Sense | See I Sense text and tables |
| 3A | I Mon | 0 to 4.64Vdc = 0 to 100% rated output. Zout < 10kΩ |
| 4 | Enable Input | Low (<0.7V, Isink@1mA)=HV OFF, High (open or >2V)=HV ON |
| 4A | V Mon | 0 to 4.64Vdc = 0 to 100% rated output. Zout < 10kΩ |
| 5 | Signal Ground | Signal Ground |
| 5A | I Pgm | 0 to 4.64Vdc = 0 to 100% rated output. Zin > 47kΩ Leave open for preset current limit @103% of rated output current |
| 6 | Remote Adjust | Positive Polarity Unit: 0 to +4.64VDC = 0 to 100% rated voltage, Zin >1MΩ Negative Polarity Unit: +5VDC to 0.36V = 0 to 100% rated voltage, Zin >100kΩ Leave open if pin 6A (VPgm) is used for programming |
| 6A | V Pgm | 0 to 4.64Vdc = 0 to 100% rated voltage. Zin > 100kΩ Leave open if pin 6 (remote adjust) is used for programming |
| 7 | +5V Reference Output | +5Vdc ±0.5%, 50ppm/°C. Zout =475Ω |
| 8 | HV Ground Return | HV Ground Return |
| 9 | E Out Monitor | 10:1 ratio for models below 1kV, 100:1 ratio for models 1kV and above. Polarity of Voltage Monitor signal equals polarity of unit. Accuracy is ±2%, 100ppm/°C. Calibrated with DVM with 10MΩ input impedance |
| 10 | HV Output | HV Output |
| 11 | HV Output | HV Output |
Grayed out signals are provided for backward legacy compatibility and their use is not required
Power Ground Return, Signal Ground and HV Ground Return are connected
internally. For best performance they should not be connected externally.
LEGACY INTERFACE (L OPTION)
| Pin | Signal | Parameters |
|---|---|---|
| 1 | Power Ground Return | +12Vdc or +24Vdc power return/HV return |
| 2 | + Power Input | +12Vdc or +24Vdc power input |
| 3 | I Sense | See I Sense text and tables for details |
| 4 | Enable Input | Low (<0.7V, Isink@1mA)=HV OFF, High (open or >2V)=HV ON |
| 5 | Signal Ground | Signal Ground |
| 6 | Remote Adjust | Positive Polarity Unit: 0 to +4.64VDC = 0 to 100% rated voltage, Zin >1MΩ Negative Polarity Unit: +5VDC to 0.36V = 0 to 100% rated voltage, Zin >100kΩ |
| 7 | +5V Reference Output | +5Vdc ±0.5%, 50ppm/°C. Zout =475Ω |
| 8 | HV Ground Return | HV Ground Return |
| 9 | E Out Monitor | 10:1 ratio for models below 1kV, 100:1 ratio for models 1kV and above. Polarity of Voltage Monitor signal equals polarity of unit. Accuracy is ±2%, 100ppm/°C. Calibrated with DVM with 10MΩ input impedance |
| 10 | HV Output | HV Output |
| 11 | HV Output | HV Output |
Power Ground Return, Signal Ground and HV Ground Return are connected internally. For best performance they should not be connected externally.
表和图
DIMENSIONS: in.[mm]
17 PIN - Standard Interface
11 PIN - Standard Interface
Frequently Asked Questions
What Is a Safe Level of High Voltage?
Where Can I Obtain Information on High Voltage Safety Practices?
How Should I Ground Your Supply?
Why Is Arcing an Issue for a High Voltage Power Supply?
