Our pulse generators and PWM circuits are quality, versatile modules designed to be multifunctional and are an essential tool for anyone working with electromagnetism, electrolysis, or any other pulsed oscillation applications. The have adjustable frequency, and adjustable duty, with a range of features such as linking them together for making complex control systems. There are several versions available to meet the needs of different voltage and current ranges, or high switching speeds. Check the Power Pulse Modulator Comparison Guide for details of the differences between the modules.
Price range: $160.93 through $201.16
Induction Heater Circuit – CRO-SM3
Price range: $374.16 through $441.22
Induction Heater Circuit – CRO-2
Price range: $130.74 through $199.14
Resonant Pulse Controller – SSTC-OCRi
Price range: $52.29 through $61.01
PWM-4808 Digital Controller
Price range: $160.93 through $201.16
Induction Heater Circuit – CRO-SM3
SKU: CRO-SM3Compact induction heating. Simple to use. Ready to integrate.
Bring induction heating to your project with a controller small enough to fit into your own equipment. The CRO-SM3 drives a coil to heat metal without a flame or direct contact, in a tiny 50 × 50 mm footprint.
Its self-resonant design follows the coil’s resonant frequency automatically. Use it for simple standalone heating, or choose PRO to develop, test and integrate your heating process.
12–24 V DC · Up to 500 W, depending on your setup
Made and individually tested in the UK
- ST: simple standalone operation with four preset power levels.
- PRO: configurable settings, computer monitoring and integration with automated equipment.
Controller module only. Starting a new build? See the developer kit.
Download the CRO-SM3 datasheet & setup guide
Connections, initial testing and full operating details
$53.63
Power Pulse Modulator – PWM-OCmi (HV)
SKU: PWM-OCmiMiniature PWM Circuit for use with high voltages
up to 300V, 3.5A
$129.75
Power Pulse Modulator – PWM-OCX v3
SKU: PWM-OCX-v3The Power Pulse Modulator OCX v3 is a compact PWM circuit with high current switching capability and advanced features for protection and interfacing with external circuits.
Frequency is adjustable from DC to 1.5MHz and with 0-100% Duty
$50.95
Power Pulse Modulator – PWM-OCm
SKU: PWM-OCmMiniature PWM Circuit for low voltages
DC to 100kHz, Adjustable Frequency, 0% to 100% PWM Duty, 8A Current, Switching Voltage up to 75V
Price range: $374.16 through $441.22
Induction Heater Circuit – CRO-2
SKU: CRO-2A powerful and versatile induction heater circuit with digital controller and lots of customisation options. With a massive heating power of up to 3kW, and operating frequencies up to 2,000 kHz, this induction heater controller is ideal for developing your own heating systems and scientific experiments.
Price range: $130.74 through $199.14
Resonant Pulse Controller – SSTC-OCRi
SKU: SSTC-OCRiA compact self resonant pulse controller designed for use in SSTCs (Solid State Tesla Coils) and any other power PWM applications. With built in logic interface, it can be controlled with external devices such as Arduino or our versatile PWM-4808 programmable controller.
We designed this to be as simple and versatile as possible so that you do not need to spend time learning about coil design and can just get on with making your cool special effect projects like plasma guns for amazing cosplay and movie effects
Price range: $52.29 through $61.01
PWM-4808 Digital Controller
SKU: N/AThe PWM-4808 is a compact and versatile controller built around the ATMega4808 microcontroller. Designed primarily for use in PWM and power control systems, this Arduino compatible controller can be used in your own custom projects or with our code as a control module for our compatible products.

Induction Heater Circuit – CRO-SM3
Compact induction heating. Simple to use. Ready to integrate.
Bring induction heating to your project with a controller small enough to fit into your own equipment. The CRO-SM3 drives a coil to heat metal without a flame or direct contact, in a tiny 50 × 50 mm footprint.
Its self-resonant design follows the coil’s resonant frequency automatically. Use it for simple standalone heating, or choose PRO to develop, test and integrate your heating process.
12–24 V DC · Up to 500 W, depending on your setup
Made and individually tested in the UK
- ST: simple standalone operation with four preset power levels.
- PRO: configurable settings, computer monitoring and integration with automated equipment.
Controller module only. Starting a new build? See the developer kit.
Download the CRO-SM3 datasheet & setup guide
Connections, initial testing and full operating details
1 in stock (can be backordered)

Power Pulse Modulator – PWM-OCmi (HV)
Miniature PWM Circuit for use with high voltages
up to 300V, 3.5A

Power Pulse Modulator – PWM-OCX v3
The Power Pulse Modulator OCX v3 is a compact PWM circuit with high current switching capability and advanced features for protection and interfacing with external circuits.
Frequency is adjustable from DC to 1.5MHz and with 0-100% Duty

Power Pulse Modulator – PWM-OCm
Miniature PWM Circuit for low voltages
DC to 100kHz, Adjustable Frequency, 0% to 100% PWM Duty, 8A Current, Switching Voltage up to 75V

Induction Heater Circuit – CRO-2
A powerful and versatile induction heater circuit with digital controller and lots of customisation options. With a massive heating power of up to 3kW, and operating frequencies up to 2,000 kHz, this induction heater controller is ideal for developing your own heating systems and scientific experiments.
Out of stock

Resonant Pulse Controller – SSTC-OCRi
A compact self resonant pulse controller designed for use in SSTCs (Solid State Tesla Coils) and any other power PWM applications. With built in logic interface, it can be controlled with external devices such as Arduino or our versatile PWM-4808 programmable controller.
We designed this to be as simple and versatile as possible so that you do not need to spend time learning about coil design and can just get on with making your cool special effect projects like plasma guns for amazing cosplay and movie effects
Available on back-order

Power Signal Generator – DDS-40W
SKU: DDS-40W
PWM-4808 Digital Controller
The PWM-4808 is a compact and versatile controller built around the ATMega4808 microcontroller. Designed primarily for use in PWM and power control systems, this Arduino compatible controller can be used in your own custom projects or with our code as a control module for our compatible products.
Available on back-order

Induction Heater Circuit – CRO-SM3
Compact induction heating. Simple to use. Ready to integrate.
Bring induction heating to your project with a controller small enough to fit into your own equipment. The CRO-SM3 drives a coil to heat metal without a flame or direct contact, in a tiny 50 × 50 mm footprint.
Its self-resonant design follows the coil’s resonant frequency automatically. Use it for simple standalone heating, or choose PRO to develop, test and integrate your heating process.
12–24 V DC · Up to 500 W, depending on your setup
Made and individually tested in the UK
- ST: simple standalone operation with four preset power levels.
- PRO: configurable settings, computer monitoring and integration with automated equipment.
Controller module only. Starting a new build? See the developer kit.
Download the CRO-SM3 datasheet & setup guide
Connections, initial testing and full operating details
1 in stock (can be backordered)

Power Pulse Modulator – PWM-OCmi (HV)
Miniature PWM Circuit for use with high voltages
up to 300V, 3.5A

Power Pulse Modulator – PWM-OCX v3
The Power Pulse Modulator OCX v3 is a compact PWM circuit with high current switching capability and advanced features for protection and interfacing with external circuits.
Frequency is adjustable from DC to 1.5MHz and with 0-100% Duty

Power Pulse Modulator – PWM-OCm
Miniature PWM Circuit for low voltages
DC to 100kHz, Adjustable Frequency, 0% to 100% PWM Duty, 8A Current, Switching Voltage up to 75V

Induction Heater Circuit – CRO-2
A powerful and versatile induction heater circuit with digital controller and lots of customisation options. With a massive heating power of up to 3kW, and operating frequencies up to 2,000 kHz, this induction heater controller is ideal for developing your own heating systems and scientific experiments.
Out of stock

Resonant Pulse Controller – SSTC-OCRi
A compact self resonant pulse controller designed for use in SSTCs (Solid State Tesla Coils) and any other power PWM applications. With built in logic interface, it can be controlled with external devices such as Arduino or our versatile PWM-4808 programmable controller.
We designed this to be as simple and versatile as possible so that you do not need to spend time learning about coil design and can just get on with making your cool special effect projects like plasma guns for amazing cosplay and movie effects
Available on back-order

PWM-4808 Digital Controller
The PWM-4808 is a compact and versatile controller built around the ATMega4808 microcontroller. Designed primarily for use in PWM and power control systems, this Arduino compatible controller can be used in your own custom projects or with our code as a control module for our compatible products.
Available on back-order

Induction Heater Circuit – CRO-SM3
Compact induction heating. Simple to use. Ready to integrate.
Bring induction heating to your project with a controller small enough to fit into your own equipment. The CRO-SM3 drives a coil to heat metal without a flame or direct contact, in a tiny 50 × 50 mm footprint.
Its self-resonant design follows the coil’s resonant frequency automatically. Use it for simple standalone heating, or choose PRO to develop, test and integrate your heating process.
12–24 V DC · Up to 500 W, depending on your setup
Made and individually tested in the UK
- ST: simple standalone operation with four preset power levels.
- PRO: configurable settings, computer monitoring and integration with automated equipment.
Controller module only. Starting a new build? See the developer kit.
Download the CRO-SM3 datasheet & setup guide
Connections, initial testing and full operating details

Power Pulse Modulator – PWM-OCmi (HV)
Miniature PWM Circuit for use with high voltages
up to 300V, 3.5A

Power Pulse Modulator – PWM-OCX v3
The Power Pulse Modulator OCX v3 is a compact PWM circuit with high current switching capability and advanced features for protection and interfacing with external circuits.
Frequency is adjustable from DC to 1.5MHz and with 0-100% Duty

Power Pulse Modulator – PWM-OCm
Miniature PWM Circuit for low voltages
DC to 100kHz, Adjustable Frequency, 0% to 100% PWM Duty, 8A Current, Switching Voltage up to 75V

Induction Heater Circuit – CRO-2
A powerful and versatile induction heater circuit with digital controller and lots of customisation options. With a massive heating power of up to 3kW, and operating frequencies up to 2,000 kHz, this induction heater controller is ideal for developing your own heating systems and scientific experiments.

Resonant Pulse Controller – SSTC-OCRi
A compact self resonant pulse controller designed for use in SSTCs (Solid State Tesla Coils) and any other power PWM applications. With built in logic interface, it can be controlled with external devices such as Arduino or our versatile PWM-4808 programmable controller.
We designed this to be as simple and versatile as possible so that you do not need to spend time learning about coil design and can just get on with making your cool special effect projects like plasma guns for amazing cosplay and movie effects

PWM-4808 Digital Controller
The PWM-4808 is a compact and versatile controller built around the ATMega4808 microcontroller. Designed primarily for use in PWM and power control systems, this Arduino compatible controller can be used in your own custom projects or with our code as a control module for our compatible products.
