Power & temperature
SmartPower™ Substrate Heater Power Supplies
SmartPower supplies for MBE substrate heating, from 800 W to 3000 W. Voltage, current, and power control modes are selectable and adjustable from the front-panel touchscreen. The dual-output version includes current-ratio, power-ratio, and voltage-ratio settings. Options also include setpoint tracking for dual-filament heaters and pyrometer-input switching.
- 800 W – 3000 W
- Dual-output ratio settings
- Voltage / current / power control
- Pyrometer input option
- Ethernet + serial

Replacement compatibility
Replacement form factor and connections
EpiTech replacement power supplies use the same connections and form factor as the models they are designed to replace. This supports replacement of obsolete supplies within the existing equipment installation.
Identify the supply being replaced when requesting a configuration so the replacement can be matched to that model.
Models
Built for the substrate heater
Dual-output ratio settings
The dual-output version includes adjustable current-ratio, power-ratio, and voltage-ratio settings for the two outputs.
Dual-filament tracking
Dual thermocouple, dual-output version with adjustable-offset setpoint (or power) tracking for dual-filament substrate heaters.
Pyrometer switching
A second input for a pyrometer. Switch from software, a remote switch, a 5 V signal or the front panel, or let a timer switch back to the thermocouple automatically.
Touchscreen output control
Select voltage, current, or power control and adjust the output setting from the front-panel touchscreen. Power, voltage and current readouts are also available over the network for logging.
Specifications
Key specifications
- Output power
- 800 W to 3000 W
- Outputs
- Single, or dual with offset tracking
- Dual-output ratios
- Adjustable current ratio, power ratio, and voltage ratio
- Output control
- Voltage, current, or power; mode selection and adjustment from the front-panel touchscreen
- Inputs
- Thermocouple(s), optional pyrometer
- Communications
- Ethernet and RS-422 serial
Interlocks
Interlock operation and recovery
Smart interlock control
While interlock 1 disables the supply, the temperature controller's PID loop is prevented from accumulating integration error. This limits excessive power demand when the interlock clears.
Soft interlock recovery
When interlock 1 clears, the requested output starts from 0% and is rate-limited so it can't reach 100% in under 10 seconds. Output recovery is controlled to limit abrupt changes in voltage and current.
Front-panel interlock bypass
The front panel allows the vacuum interlock to be bypassed. Select the interlock configuration according to the heater requirements and the effects of rapid cooling.
Communications
Communications and software compatibility
Ethernet and serial interfaces support integration with modern and legacy MBE control software. Supported protocols and interfaces are listed below.
- Modbus TCPEthernet
- Modbus RTURS-422 serial
- EI-BisynchRS-422 serial
- Molly · AMBER · Nova · Crystal XEcompatible
- Machine Studioby epiware llc
Specifications and operating instructions
Request the SmartPower substrate heater supply datasheet
We'll email the full specifications and operating instructions. Or tell us about your system and an engineer will follow up about integrating it.
Contact EpiTech: 443-295-3625 · [email protected]
Thank you for your request. We'll email the SmartPower substrate heater supply specifications shortly. Let us know if you have any questions.
— The EpiTech team



