Ultrasonic Power Supplies DC/PC

Digital Compact

The concept behind this unique system generation is based on consistently implementing digital technology in power supply and controller engineering.

These power supplies are extremely compact and have a modular design. Thus they support a modern and service-friendly control cabinet concept.

The power supplies generally feature a control interface to super ordinate control systems,

All requirements can be covered by the product family. 

• The Digital Compact basic is employed when the entire welding cycle can be covered by the machine control.
• The Digital Compact (standard) is always employed when high-precision weld times and energies with repeat accuracy are important with subsequent limit value evaluation.
• The Digital Compact plus is employed when a complete welding cycle including the control of one actuator is needed.

Main features

•  Amplitude profile

• The amplitude of the horn is one of the most important features during ultrasonic welding. The electronic amplitude control offers accuracy hitherto unknown for process optimization.
• Monitoring important welding parameters.
• RTP: Data processing in real-time.
• Digital PPL: digital phase-coupled servo loop.
• Active frequency regulation AFR: It tunes the power supply automatically to the optimal working point despite interfering secondary resonances and heat fluctuations at the horn up to 70 °C.
• Mains voltage regulation AVR: In the range of ±15 % of the input voltage, mains fluctuations are completely adjusted for.
• Power and amplitude remain constant.
• Variable soft start / ramp start VRT: It leads to low-stress settling of the stack assembly

Standard Interface

They provide useful control and data recording possibilities:

• External frequency search
• External reset
• Ready signal
• Ultrasonic vibrations start
• Frequency and power output signal
• Amplitude input signal
• Window signals for power monitoring

Professional Compact

There is no way to "prove in" top quality in production by statistical means but only by permanent monitoring, analysis and closed loop control of the process chain. This is, without any exception, valid for the ultrasonic welding technology where the communication capability of equipment used and continuous and transparent information flow represent an essential component to comply with future automation demands. Branson's answer to this challenge is the development of the "Professional Compact" digital generator/ power supply.

Main features

• Access to all parameters and weld data
• Different Weld Modes: Time, Energy, Peak Power, Continuous Ultrasonics; Metal Contact
• Entry of limit values such as Energy, Time, Power, Amplitude Profile
• Generation of error signals such as Overload, Timeout
• Provision of weld data such as Power, Amplitude, Energy, Frequency, Weld Time
• Resonance Analysis of Acoustic Stack (Horn)
• Parameter change on the fly with each new cycle
• Parametrising of the power supply by an external control

Advantageous cost/use ratio for the manufacturer:

•  Slim project engineering efforts and easy setup in the automation environment/ machine
• Largely reduced wiring efforts
• Shorter distance for signal processing
• Less space requirements for the control cabinet
• Improved overview
• Easy to accommodate adaptions for actual requirements by extensions or modifications
• More automation "on-time" by quick exchange of power supply module (in case of failure)