GRC 1.5kV Isolated Regulated High Voltage DC-DC Converter

Product Advantage

1. Input-to-Output Isolation for Instrument Power Circuits

The GRC series provides a specified input-to-output isolation withstand voltage of 1,500 VDC, with insulation resistance exceeding 1,000 MΩ when measured at 500 VDC.

The isolation barrier separates the supply and output ground domains, helping reduce ground-loop interference between connected circuits. This makes the series an option for instruments and industrial equipment requiring an isolated high-voltage source. Suitability for safety-regulated applications depends on the complete equipment design and applicable certification requirements.

2. Input Options for 12 V and 24 V Systems

Two input families accommodate nominal 12 V and 24 V supplies, with operating ranges of 10–18 VDC and 18–36 VDC respectively. Designers can select the appropriate version for the system power rail.

Specified line regulation is ±1%, while load regulation is ±1% over 10–100% load. Conversion efficiency ranges from 70% to 80%, depending on the model and operating conditions. A switching frequency of 220 kHz provides a defined basis for external filter design, with filtering components selected according to the module’s requirements.

3. Single and Bipolar High-Voltage Outputs

Single-output versions cover 50–600 VDC, while bipolar versions offer ±50 VDC to ±300 VDC. Available power ratings range from 4 to 6 W, depending on the selected model.

Published characteristics include ±2% output-voltage accuracy, ripple and noise of ±1% measured with a 20 MHz bandwidth, and a temperature coefficient of 0.03%/°C. Continuous, self-recovering short-circuit protection allows operation to resume after the fault is removed.

Maximum capacitive load varies from 10 to 100 µF according to output voltage. The selected model’s limit should be checked when connecting reservoir capacitors or downstream filtering networks.

4. Low-Profile Aluminum Housing

The GRC uses a coated aluminum enclosure measuring 50.8 × 25.4 × 10.5 mm and weighing approximately 25 g. Its low-profile construction supports installation in compact instrument assemblies.

The five-pin connection arrangement accommodates either a single output or positive and negative outputs with a common reference. The metal enclosure supports heat dissipation through natural convection. A case temperature rise of 35°C is stated under full-load operation at 25°C ambient; actual temperatures depend on mounting, airflow and surrounding components.

The specified soldering limit is 300°C for 10 seconds, measured 1.5 mm from the package body.

5. High-Voltage Supply Options for Measurement and Control

The series can supply compatible detector bias circuits, analytical instruments, automatic test equipment, display circuitry and selected capacitor-charging applications. Bipolar models also support circuits requiring positive and negative high-voltage rails.

Selection should consider output current, ripple tolerance, startup behavior and load capacitance alongside voltage. In larger systems such as imaging or beam-control equipment, suitability must be assessed for the specific circuit being powered rather than the equipment category as a whole.

6. Environmental Ratings and Reliability Data

The stated operating temperature range is −40°C to +85°C, with storage limits of −40°C to +105°C and operating humidity of 10–90% under non-condensing conditions. These ratings inform enclosure and thermal design; outdoor or contaminated environments require suitable additional protection.

The published MTBF is 100,000 hours, calculated according to MIL-HDBK-217F at 25°C. This figure represents a statistical reliability estimate under defined assumptions, rather than a guaranteed service life. External protection components should follow the complete manufacturer recommendations for the selected model.

Technical Parameters

Product Uses

Here are seven specific application scenarios of the GRC Series Low-Cost Wide Voltage Input 1.5KV Isolation DC High Voltage Output Power Module:

1.Medical blood analysis equipment: The module is used to provide isolated high DC voltage output for blood cell analyzers and hematology analyzers, powering photomultiplier tubes and laser detection circuits with stable high-voltage supply, while the low-cost design makes it economically viable for high-volume clinical diagnostic instrument production without compromising essential isolation and voltage conversion performance required for accurate blood sample analysis.

2.Petrochemical instrumentation: The module is used to supply isolated high voltage for sensors and monitoring instruments in petrochemical processing plants, where the wide voltage input accommodates fluctuating industrial power supply conditions and 1.5KV isolation provides adequate electrical separation between control circuits and high-voltage sensing components in refinery and chemical plant monitoring systems operating in hazardous environments.

3.Laboratory analytical instruments: The module is used to deliver regulated high DC voltage for laboratory equipment such as spectrophotometers, chromatography detectors, and electrophoresis systems, with the wide voltage input ensuring stable operation under varying laboratory power conditions and the cost-effective design enabling integration into budget-conscious academic and research institution laboratory instrument configurations.

4.Ultrasonic medical instruments: The module is used to generate isolated high voltage for driving piezoelectric transducers in medical ultrasound diagnostic systems, with the regulated DC output ensuring stable transducer excitation for producing high-quality ultrasound images, while 1.5KV isolation protects sensitive signal processing circuits from high-voltage transients during ultrasound wave transmission and reception.

5.Power metering instruments: The module is used to provide isolated high voltage bias for smart electricity meters, power quality analyzers, and distribution monitoring equipment, with the wide voltage input accommodating unstable power grid conditions and the low-cost design enabling large-scale deployment across power distribution networks while maintaining adequate isolation for reliable metering performance.

6.3D printing equipment: The module is used to supply isolated high voltage for 3D printing systems, powering high-voltage components such as electrostatic print heads, powder dispersion actuators, and laser scanning modules, with the wide voltage input supporting varying power supply conditions in industrial additive manufacturing environments and the compact form factor enabling integration into space-constrained 3D printer enclosures.

7.Portable and consumer electronic devices: The module is used to enable cost-sensitive portable devices to generate isolated high DC voltage from low-voltage battery sources, with the wide input voltage range accommodating battery discharge curves and the low-cost compact design suitable for volume production of handheld testing instruments, portable analyzers, and consumer electronic products requiring isolated high-voltage power generation.