GRE 6kV Isolated Dual-Output High Voltage DC-DC Converter

Device features:

1. Protect the control loop of the upper stage of the host computer.

2. Reduce the impact of environmental noise on the test circuit, and can overcome inverter noise and various high and low frequency pulsation interference.

3. It suppresses the interference of circulating currents in public ground wires and pulses of frequency converters, solenoid valves, thyristors, etc. to equipment. It also has the function of limiting voltage and current for lower-level equipment. It is a faithful protection for transmitters, instruments, frequency converters, solenoid valves, PLC/DCS input and output, and communication interfaces.

The DIN35 series standard 35mm guide rail card holder structure is easy to install and can effectively isolate: the potential difference between signal input, signal output, power supply and earth.

Product Advantage

1. Three-Port Isolation for Separate Output Domains

The GRE series provides two isolated high-voltage outputs within one module. Input-to-output and channel-to-channel isolation are each specified at 6,000 VDC, tested for 60 seconds at the stated 1 mA leakage condition. Insulation resistance exceeds 1,000 MΩ at 500 VDC across each barrier.

This architecture allows the two outputs to serve circuits with separate ground references, helping reduce ground-loop interference between instrument sections. It offers a compact alternative to using two individual converters where independently referenced bias supplies are required.

2. Configurable Bipolar Supply Connection

Where permitted by the selected model’s datasheet, the two isolated outputs can be connected in series to establish positive and negative rails around a common reference. The junction between one channel’s positive terminal and the other channel’s negative terminal forms the midpoint.

This arrangement supports compatible circuits requiring bipolar high-voltage bias, such as electrostatic deflection or electrode-control stages. Output loading, insulation requirements and protection behavior must follow the approved connection scheme. Galvanic isolation alone does not guarantee that a fault on one output leaves the other unaffected.

3. Multiple Input and High-Voltage Output Options

Nominal input options include 5 V, 12 V and 24 VDC, with respective operating ranges of 4.5–9 V, 9–18 V and 18–28 V. Output options span 50–400 VDC per channel, with total module power ratings from 1 to 5 W, depending on the model.

Both channels have matching nominal output voltages. For example, the listed GRE12200200S-4W provides two 200 VDC outputs rated at 10 mA each.

Specified line regulation is ±1%, and load regulation is ±1% over 10–100% load. Listed conversion efficiency ranges from 60% to 80%, with no-load consumption of 350 mW.

4. Two Isolated Channels in a Compact Package

The GRE measures 33.0 × 10.5 × 15.5 mm and weighs approximately 10 g. Its PVC housing material carries a stated UL94 V-0 flammability rating.

The 12-pin arrangement provides separate terminal pairs for the two outputs, with unused positions between connection groups. PCB layout must still maintain the clearance and creepage required by the application. The stated soldering limit is 300°C for 10 seconds. Natural-convection cooling supports integration within the applicable load and temperature limits.

5. Regulated Outputs with Recoverable Fault Protection

The series specifies ±2% output-voltage accuracy, ripple and noise of ±1% measured with a 20 MHz bandwidth, and switching frequencies of 200–400 kHz. A temperature coefficient of 0.02%/°C characterizes output variation under the stated conditions.

Both outputs include self-recovering short-circuit protection. Operation can resume after the fault is removed, subject to the module’s specified recovery conditions. Applications requiring uninterrupted operation of the remaining channel should verify cross-channel behavior under the intended fault and loading conditions.

6. Dual-Channel Bias for Instrumentation

The GRE series can supply compatible dual-channel detector circuits, photomultiplier or microchannel-plate bias stages, nuclear measurement instruments and selected electrostatic control circuits.

Its isolated outputs are useful where two loads require separate reference potentials or an approved bipolar connection. Selection should consider voltage, available current, ripple, load capacitance and channel interaction. In imaging or beam-control equipment, suitability must be assessed for the specific circuit being powered.

Technical Parameters

Product Uses

Here are seven specific application scenarios of the GRE Series 2:1 Wide Voltage Input 6KV Isolation Dual-Loop DC High Voltage Output Power Module:

1.Medical analytical instruments: The module is used to provide 6KV-isolated dual-loop high DC voltage output for blood cell analyzers, biochemical analyzers, and flow cytometers, with the dual-loop design simultaneously powering photomultiplier tubes and laser detection circuits from separate isolated channels, ensuring stable high-voltage supply while preventing ground potential differences between instrument subsystems from interfering with sensitive sample detection and cell counting processes.

2.Power grid monitoring equipment: The module is used to supply isolated high voltage in power grid monitoring instruments and distribution cabinet detection systems, where 6KV galvanic isolation effectively protects equipment and operators from high voltage potential differences between different grounding terminals, ensuring safe and reliable operation of smart electricity meters, load monitoring terminals, and power quality analyzers in high-voltage electrical environments.

3.Medical imaging systems: The module is used to deliver isolated dual-channel high DC voltage for medical imaging components such as X-ray detector tubes and image intensifiers, with the dual-loop output providing independent power to detector and processing circuits simultaneously, while 6KV isolation ensures complete electrical separation that prevents noise interference and protects patients and operators from hazardous leakage currents during diagnostic imaging procedures.

4.Industrial automation control systems: The module is used to provide isolated dual-loop power for industrial automation controllers, PLC systems, and DCS equipment, with the 2:1 wide voltage input accommodating fluctuating industrial power supply conditions and the dual isolated outputs powering both analog and digital circuits independently, eliminating ground loop interference and ensuring stable operation of precision control systems in demanding manufacturing environments.

5.Communication interface isolation protection: The module is used to supply isolated power for RS485, CAN bus, and Ethernet communication modules in industrial networks, with 6KV galvanic isolation preventing ground loop interference and protecting communication circuits from voltage surges and spikes, while the dual-loop output simultaneously powers communication transceivers and signal conditioning circuits, ensuring reliable data transmission in remote monitoring and IoT applications.

6.Laboratory analytical instruments: The module is used to deliver regulated high voltage for laboratory analytical equipment including mass spectrometers, electron microscopes, and spectrophotometers, where the dual-loop design provides independent isolated power to ionization and detection subsystems, with 6KV isolation preventing cross-interference between high-voltage and low-voltage circuits and the wide voltage input ensuring stable operation under varying laboratory power supply conditions.

7.Portable and field-deployable instruments: The module is used to enable battery-powered portable medical and testing instruments to generate stable isolated high DC voltage from low-voltage sources, with the 2:1 wide voltage input accommodating battery discharge curves and the dual-loop output powering multiple high-voltage subsystems independently, while 6KV isolation protects operators and measurement circuitry from hazardous voltages encountered during field testing and point-of-care diagnostic operations.