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PHV 2kW 15kV 20kV 25kV 30kV AC-DC High Voltage Power Supply with Parallel Option
PHV 2kW 15kV 20kV 25kV 30kV AC-DC High Voltage Power Supply with Parallel Option
- PHV 2kW 15kV 20kV 25kV 30kV AC-DC high voltage power supply
- Positive polarity or negative polarity at requests
- Constant voltage mode / Constant current mode
- Low ripple 0.1%FS
- List mode function, Auto Run function
- Interlock loop function
- No overshoot during startup
- Soft start by hardware, and adjustable voltage rise time by software
- Multiple protections: OVP, OTP, ACF and current limit protections
- Data record and export through PC control software
- Remote control: RS232 & RS485, support ModBus-RTU commands
- Options: Analog interface for control and feedback
- Options: LAN interface
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Twintex PHV 2kW series is AC-DC high voltage power supply that converts AC mains to regulated stable high voltage DC power. Standard voltage ratings include 15kV, 20kV, 25kVand 30kV in either positive polarity or negative polarity. The suffix P or N on the model number indicates output polarity.
With 2U rack mount design, the 15kV to 30kV AC-DC high voltage power supply can be used as a bench top high voltage source, and it also can be integrated to Automatic test equipment (ATE) system via RS232, RS485 or LAN interface, for various high-voltage applications.
- Typical application 1: use the 15kV to 30kV AC-DC high voltage power supply in life testing or aging testing of high-voltage capacitors rated at 10kV 15kV 20kV 30kV. Life testing involves simulating the long-term operation of capacitor banks under actual working conditions and evaluating their expected service life through accelerated aging tests.
- Typical application 2: use the 15kV to 30kV AC-DC high voltage power supply in charging super capacitor banks/modules. Charging super capacitor banks/modules using a combination of high voltage and high current offers the core advantage of achieving high charging power density, enabling the delivery of energy to the capacitors in a short time.
To each higher power, several units of the 15kV to 30kV AC-DC high voltage power supply can be connected in parallel in factory to make a stand alone power supply, rated power up to 40kW. For example:
PHV20K-15K: 15kV 1.333A 20kW high voltage power supply, consist of 10 units of 15kV 2kW modules.
PHV20K-20K: 20kV 1A 20kW high voltage power supply, consist of 10 units of 20kV 2kW modules.
PHV30K-25K: 25kV 1.2A 30kW high voltage power supply, consist of 15 units of 25kV 2kW modules.
PHV30K-30K: 30kV 1A 30kW high voltage power supply, consist of 15 units of 30kV 2kW modules.
Product Parameters
PHV High Voltage Power Supply 15kV 20kV 25kV 30kV 35kV 40kV 50kV
Model | Rated Output | Model | Rated Output | |||||
| V | A | W | V | A | W | |||
| PHV1200-15K | 80mA | 1200W | PHV2000-15K | 15kV | 133mA | 2000W | ||
| PHV1200-15KN | -15kV | 80mA | 1200W | PHV2000-15KN | -15kV | 133mA | 2000W | |
| PHV1200-20K | 20kV | 60mA | 1200W | PHV2000-20K | 20kV | 100mA | 2000W | |
| PHV1200-20KN | -20kV | 60mA | 1200W | PHV2000-20KN | -20kV | 100mA | 2000W | |
| PHV1200-25K | 25kV | 48mA | 1200W | PHV2000-25K | 25kV | 80mA | 2000W | |
| PHV1200-25KN | -25kV | 48mA | 1200W | PHV2000-25KN | -25kV | 80mA | 2000W | |
| PHV1200-30K | 30kV | 40mA | 1200W | PHV2000-30K | 30kV | 66mA | 2000W | |
| PHV1200-30KN | -30kV | 40mA | 1200W | PHV2000-30KN | -30kV | 66mA | 2000W | |
| PHV1200-40K | 40kV | 30mA | 1200W | |||||
| PHV1200-40KN | -40kV | 30mA | 1200W | |||||
| Weight | 482.6Wx88Hx493D mm (2U) | |||||||
| Dimensions | Approx 11kg | |||||||
| AC Input | 1φ3W, 220V±10% 47~63Hz | |||||||
For the purpose of product improvement, specifications are subject to change without prior notice.
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Frequently Asked Questions
A DC power supply is to supply voltage and current in constant voltage (CV) or constant current (CC) mode within the rated output range. Such working characteristics is called a constant voltage/constant current automatic cross-over type. This permits continuous transition from constant current to constant voltage modes in response to the load change. The intersection of constant voltage and constant current modes is called the crossover point. Below figure shows the relationship between this crossover point and the load.
In CV mode, a regulated output voltage is provided. The output voltage remains constant as the load increases while the output current changes in response to the load changes, up till the present current limit point is reached. At that point, the output current becomes constant and the output voltage drops in proportion to the further increases in load.
Similarly, in CC mode, crossover from the CC to CV mode automatically occurs from a decrease in the load. A regulated output current is provided. The output current remains constant as the load decreases while the output voltage changes in response to the load changes.
A power supply with CV and CC operation mode can be operated in only one mode according to load situation. The power supply is in CV mode when the actual load is over the preset load capacity; and the power supply is in CC mode when the actual load is below the preset load capacity.
When the power supply is connected to a big capacitive load, it always causes increase to the output voltage in a power supply. The output voltage may make fast increase to the Over Voltage Protection point. It may also cause slow decrease when the output voltage is turned down.
To solve this problem, connect a power resistor in parallel to the output terminals of the power supply; at the same time, connect a diode in serial between output terminals and the load.
When an inductive load is connected to the power supply, it will cause a reverse polarity induction electric motive force when the power supply is turned on or off, or when preset the output voltage. The pulse noise caused by an inductive load will also affect the power supply, especially when the pulse noise has the same polarity with the output of power supply.
To avoid effect or damage to the power supply, connect a diode in serial between the output terminals of power supply and the load; at the same time, connect a power resistor and a capacitor in parallel to the load to make a R-C snubbed circuit, which will significantly restraint generation of the noise.
When use the power supply to charge a battery, such as accumulator and ni-mh battery, the recommended protection measures is to connect a diode between the power supply and the battery. When the output electrolytic capacitor of the power supply is charged, connecting a load (battery) may cause sparks. This is normal. After the two of them get to equal voltage, the sparks will disappear.
Even if the peak current of a pulse load, such as motor, bulb, DC-DC or DC-AC converter module, does not exceed the rated current of the power supply, it will also cause voltage drop or instability to the output.
A basic solution is to connect a inductor in serial between the power supply and the load. Or, choose a power supply with higher rated current.
If the pulse circuit has a small pulse width or low peak current, another solution is to connect a capacitor with large capacity. A reference to choose capacity of a capacity is: 1000uF capacity to a 1A current.
When the power supply is connected to a load that will cause reverse polarity current to the power supply output, the output voltage will increase, because the power supply cannot absorb the reverse polarity current from the load.
A solution is to connect a diode in serial between the output terminal and the load; at the same time, connect a discharge resistor in parallel to the load to absorb the reverse polarity current. When the reverse polarity current is a peak surge, connect the large electrolytic capacitor in parallel to the two ends of the load.
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