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“E” SERIES
PRECISION HIGH VOLTAGE POWER SUPPLY | | PRELIMINARY DATA SHEETPrecision output voltage from 0 to 1kV thru 0 to 15kV4, 15/20, or 30 watts of output powerMaximum Iout capability down to 0 VoltsWide input voltage rangePPM level line regulation and load regulationIndefinite output short-circuit protectionOutput current monitorFixed-frequency, low-stored-energy design<10ppm ripple10ppm temperature coefficient and reference | | GENERAL INFORMATION:
The “E” Series of high-voltage, regulated DC-DC converters addresses the needs of the precision high-voltage-power-supply user. Based on the “A” Series, the “E” Series is designed and built utilizing state-of-the-art power conversion topology. These units feature surface mount technology and encapsulation techniques providing high reliability and low cost. DESIGN METHODOLOGY:
The “E” converters utilize a dual-ended forward converter topology with a nominal switch frequency of <100kHz. A precision reference is provided so the remote control can program the power supply for a specific voltage. Once input voltage stabilizes, under-voltage lockout is released. As soon as enable is raised above a TTL 1, the converter begins to switch. The soft-start circuit brings the converter to full power over a 1mS period, reducing surges on the source supply. A constant-frequency PWM regulation system controls the MOSFET push-pull power stage, which drives the high voltage transformer. The power stage is protected from output current overloads or short circuits via a secondary current limit circuit. High voltage is developed by a multistage multiplier while feedback voltage is developed and sent to the CTRL circuit to maintain regulation. Multi-stage internal filters are provided to reduce input current ripple and output voltage ripple. WIDE INPUT AND OUTPUT RANGE:
The “E” Series has a wide input range of +23 to +30VDC and will maintain full power output without derating. See Application Note 16 for protection information. The “E” Series is a non-isolated, unipolar converter. Positive or negative output must be specified. Output voltage is adjustable from 0 to 1kV, 2kV, 4kV, 6kV, 10kV, or 15kV. As the output voltage is reduced towards 0, the maximum current capability remains unchanged. OUTPUT VOLTAGE MONITOR
The “E” Series features a precision-buffered output voltage monitor calibrated to 0.1% accuracy. The output voltage can be monitored by reading the voltage appearing between pin 4 and Signal Ground Return pin 15. The signal is 0 to +10VDC for 0 to 100% rated output. | OUTPUT CURRENT MONITOR:
The “E” Series features a precision-buffered output current monitor calibrated to 0.1% accuracy. Current from the high-voltage multiplier can be monitored by reading the voltage appearing between Output Monitor pin 12 and Signal Ground Return pin 15. REMOTE CONTROL:
The “E” Series is remotely programmed with 0 to +10 VDC to produce an output voltage. Input may be from a control voltage, a DAC, or from a variable or fixed resistor. Connections are on the converter for the internal reference, analog remote adjust and the signal ground. The reference is a precision-buffered temperature compensated +10VDC. See Figure A & B and Application Note 1 for more information. STANDBY MODE:
The “E” converters also have an enable function. When the enable is TTL 0 (<+0.7V Isink=1mA) the converter is in a standby mode and input current is reduced to <0.04 mA. All functions other than the internal reference are shut down. If the enable pin is connected to a TTL 1, or at greater voltages up to +32VDC the converter operates normally. MECHANICAL:
“E” Series converters are in chassis mountable aluminum cases requiring a footprint of 25.4 in² and 50.7 in³ of volume. See Application Note 6 for thermal considerations and for mounting configurations. ENVIRONMENTAL:
The “E” Series provides full power and performance operation at case temperatures from +10 to +45°C. All units receive a 24-hour burn-in prior to final testing. Extended temperature range is available along with other enhanced capabilities. Please contact the factory.  |
1800 OCEAN AVE., FRNT
RONKONKOMA, NY 11779
TEL 800-9HV-POWER
TEL 631-471-4444
FAX 631-471-4696
www.ultravolt.com
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| Parameter | Conditions | Models | Units | | Input: | 24V | | Voltage Range | Full Power | + 23 to 30 | VDC | Current | Standby / Disable | < 40 | mA | Current | No Load, Max Eout | < 250 | mA | AC Ripple Current | Nominal Input, Full Load | < 25 | mA p-p | | Output: | 1E | 2E | 4E | 6E | 10E | 15E | | | Voltage Range | Nominal Input | 0 to 1,000 | 0 to 2,000 | 0 to 4,000 | 0 to 6,000 | 0 to 10,000 | 0 to 15,000 | VDC | | Nominal Input Voltage / Model | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | VDC | | Power | Nominal Input, Max Eout | 4 | 20 | 30 | 4 | 20 | 30 | 4 | 20 | 30 | 4 | 20 | 30 | 4 | 15 | 30 | 4 | 15 | 30 | Watts | | Current | Iout Entire Output Voltage Range | 4 | 20 | 30 | 2 | 10 | 15 | 1 | 5 | 7.5 | .67 | 3.3 | 5 | .4 | 1.5 | 3 | .26 | 1 | 2 | mA | | Ripple | Full Load, Max Eout | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | PPM | | Line Regulation | Nom. Input, Max Eout, Full Power | < 10ppm | VDC | | Static Load Regulation | No Load to Full Load, Max Eout | < 10ppm | VDC | | Stability | 30 Min. warmup, per 8 hr/ per day | < 10ppm | VDC | | Remote Programming: | All Types | | | Input Impedance | Nominal Input | 10 | MΩ | | Adjust Resistance | Typical Potentiometer Values | 10K to 100K (Pot across Vref. & Signal GND, Wiper to Adjust) | Ω | Adjust Accuracy | 0% to 100% | 0.1% | VDC | Adjust Linearity | 0% to 100% | 0.1% | VDC | Adjust Voltage | Referenced to signal ground | 0 to +10 VDC | VDC | | Reference: | All Types | | Output Voltage | T=+25°C, Initial Value | +10.00 ± 1% | VDC | Max Source Current | T=+25°C | 1 | mA | Stability | Over Full Temperature Range | Figure B | Graph | | Enable: | All Types | | Power Supply On | Voltage ≥ TTL High | +2.4 to 32 | VDC | Power Supply Off | Grounded, or voltage ≤ TTL Low | 0 to + 0.7 ± 0.2 (Isink 1mA minimum) | VDC | | Temperature & Humidity: | All Types | | | Humidity | All Conditions, Standard Package | 0 to 95% non-condensing | | | Operating | Full Load, Max Eout, Case Temp. | +10 to +45 | °C | | Storage | Non-Operating, Case Temp. | -55 to +105 | °C | | Coefficient | Over the Specified Temperature | ± 10 | PPM/ °C | | Thermal Shock | Mil-Std 810, Method 504, Class 2 | -40 to +65 | °C | | Altitude: | All Types | | | All conditions | Standard Package | Sea Level through Vacuum | | | Shock & Vibration: | All Types | | | Shock | Mil-Std-810, Method 516, Proc. 4 | 20 | G’s | | Vibration | Mil-Std-810, Method 514, Fig. 514-3 | 10 | G’s | | Packaging: | All Types | | | Material | Outer construction | Aluminum Alloy 5052-H32, Finish: Blue Anodized MIL-A-8625E | | | Length | Not including pins or mounting pts | 7.25 (184.2) | In (mm) | | Width | Not including pins or mounting pts | 3.50 (88.4) | In (mm) | | Height | Not including pins or mounting pts | 2.00 (50.8) | In (mm) | | Volume | Not including pins or mounting pts | 50.75 (128.9) | In³ (cc) | Weight | Overall | 34.5 (978) | Oz (g) |
Typical Performance Characteristics: 
Fig. A
Remote Control Characteristics 
Fig. B
Reference Stability “E” SERIES
PRECISION HIGH VOLTAGE POWER SUPPLY |  |
Dsub 15 Pin Connections | 1: +10VDC Reference | | 2, 5, 13, & 14: N/C | | 3: Control Input | | 4: V Monitor Output | | 6, 9, 10 & 15: Signal Ground | | 7 & 8: +24VDC | | 11: Enable Input | 12: Current Monitor Output |
Input Power Connector | 1: Input Power Ground Return | | 2: N/C | | 3: Positive Power Input |
| Ordering Information | Type: | 0 to 1,000 VDC Output | 1E | | | 0 to 2,000 VDC Output | 2E | | | 0 to 4,000 VDC Output | 4E | | | 0 to 6,000 VDC Output | 6E | | | 0 to 10,000 VDC Output | 10E | | | 0 to 15,000 VDC Output | 15E | | Input: | Positive Output | -P | | | Negative Output | -N | | Power: | 4 Watts Power Output | 4 | | | 15/20 Watts Power Output | 15/20 | | | 30 Watts Power Output | 30 |
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