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PCH 1200W Compact 1200V 1A Programmable High Voltage Power Supply 1000V 1500V 2000V 3000V
PCH 1200W Compact 1200V 1A Programmable High Voltage Power Supply 1000V 1500V 2000V 3000V
- Programmable High Voltage DC Power Supply 1200W
- Output ratings 1000V 1.2A, 1200V 1A, 1500V 0.8A, 2000V 0.6A, 3000V 0.4A
- Option for negative polarity -1000V, -1200V, -1500V, -2000V, -3000V
- Low ripple 0.1%FS
- Compact design, 2U half width cabinet
- List mode function, Auto Run function
- No overshoot during startup
- Soft start by hardware, and adjustable voltage rise time by software
- Remote ON/OFF control
- Preset function, setting of voltage and current with output open circuit
- Multiple protections: OVP, OTP, ACF and current limit protections
- Standard interface: RS232 & RS485, support ModBus-RTU commands
- Data record and export through PC control software
- Hot keys for data save and recall on PC control software
- Same output ratings available with 2U full size rack mount cabinet
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Twintex PCH1200-S series are 1200W programmable high voltage power supplies rating at DC 1000V 1.2A, 1200V 1A, 1500V 0.8A, 2000V 0.6A, 3000V 0.4A. The programmable high voltage power supply provides positive polarity by default. There is option of negative polarity.
The programmable high voltage power supply is designed for both bench top applications and rack systems. Two power supplies can be built into a 2U full rack as shown in photos on the right, making total power 2400W from a single rack. Each power supply is independent in AC input, DC output and remote control.
For higher voltage at 1200W power level in the same product family, please refer to PCH1200 series (1kV to 12kV) and PHV1200 series (15kV to 40kV), built in a 2U full rack.
Product Parameters
Programmable High Voltage DC Power Supply 600W 1200W
| Model | Rated Output | Model | Rated Output | |||||
| V | A | W | V | A | W | |||
| PCH600-10HS | 1000V | 600mA | 600W | PCH1200-10HS | 1000V | 1200mA | 1200W | |
| PCH600-10HSN | -1000V | 600mA | 600W | PCH1200-10HSN | -1000V | 1200mA | 1200W | |
| PCH600-12HS | 1200V | 500mA | 600W | PCH1200-12HS | 1200V | 1000mA | 1200W | |
| PCH600-12HSN | -1200V | 500mA | 600W | PCH1200-12HSN | -1200V | 1000mA | 1200W | |
| PCH600-15HS | 1500V | 400mA | 600W | PCH1200-15HS | 1500V | 800mA | 1200W | |
| PCH600-15HSN | -1500V | 400mA | 600W | PCH1200-15HSN | -1500V | 800mA | 1200W | |
| PCH600-20HS | 2000V | 300mA | 600W | PCH1200-20HS | 2000V | 600mA | 1200W | |
| PCH600-20HSN | -2000V | 300mA | 600W | PCH1200-20HSN | -2000V | 600mA | 1200W | |
| PCH600-30HS | 3000V | 200mA | 600W | PCH1200-30HS | 3000V | 400mA | 1200W | |
| PCH600-30HSN | -3000V | 200mA | 600W | PCH1200-30HSN | -3000V | 400mA | 1200W | |
| Weight | Approx 5kg | |||||||
| Dimensions | 212.5Wx88Hx340D mm (1/2 2U) | |||||||
| 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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