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Our control components deliver precise, excellent performance even under high power conditions (average power to 100 Watts and peak power to 1000 Watts). We pay careful attention to understanding and controlling the performance characteristics that contribute to excellence in overall system performance. And we offer a variety of packaging options -- surface mount, drop-in and microstrip -- in a process that combines the best of both GaAs FET and pin diode technologies.
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The Candy Switch is used by thousands of equipment manufacturers and users world-wide to control circuits during a machine cycle. This Candy Switch can vary the "on-off" time cycle as well as the length of "on" dwell time. Each electrically controlled machine component can be synchronized to the demands of the parent machine without custom designed cams or expensive electronic devices.
The Candy Switch is available in both solid-state and electro-mechanical models. A variety of cams and switching mechanisms allow the Candy Switch to accomodate most every industrial application. The solid-state models provide precise, repeatable timing control for over 100 million cycles.
Solid State Model
For applications that require higher switching speeds and greater accuracy, Candy offers a complete line of solid-state switches. This line employs a board mounted photo scanner which reads a reflective pattern from a printed cam.
The N cam is the standard cam for most solid-state models. Alternative cams are available with different operating characteristics as described to the lower right.
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General Description
A Quasi-Resonant Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for quasi-resonant operation and Alternating Valley Switching. The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout, Leading- Edge Blanking, optimized gate driver, internal softstart, temperature-compensated precise current sources for a loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSQ-series can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for cost-effective designs of quasi-resonant switching flyback converters
Features
- Optimized for Quasi-Resonant Converter
- Low EMI through Variable Frequency Control and AVS
- High-Efficiency through Minimum Voltage Switching
- Narrow Frequency Variation Range over Wide Load and Input Voltage Variation
- Advanced Burst-Mode Operation for Low Standby Power Consumption
- Simple Scheme for Sync Voltage Detection
- Pulse-by-Pulse Current Limit
- Various Protection functions: Overload Protection, Over-Voltage Protection, Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown with Hysteresis, Output Short Protection
- Under-Voltage Lockout with Hysteresis
- Internal Start-up Circuit
- Internal High-Voltage Sense FET (650V)
- Built-in Soft-Start (15ms)
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celpac 2G :
22,5 and 45mm pitch
More and more the seek for cost reduction implies easy and quick assembling in electrical cabinets, and in the smaller space if possible : the new generation of our celpac products is the answer
Performances & reliability :
-Maximum voltage up to 1600V (690VRMS), 600VAC and 1200VAC as standard,
-Thyristor rating up to 95A (IRMS = 96A @ 100°C ; IRMS = 125A @ 85°C,
-Large input range : 3-32VDC with regulated current models,
-AC input control available,
-Input status yellow LED
-Over-voltage protection on input,
-New generation of TMS² technology for thyristors for a longer life expectancy
-Quick and easy connections,
-Designed according to European standards EN60947-4-3 (IEC947-4-3) and EN60950 (VDE0805 reinforced insulation) -UL-cUL
-IP20 protection with removable flaps (SU range) or cover (SA range)
-Other protection devices in option : RC snubber, VDR, self turn-on
-Fixation screws compatible with SO or SC relays in hockey puck style
Price-effective & small-size solution :
-The 22,5mm pitch of our Solid state Contactors reduces space to the minimum,
-Reduced assembling time, easy cabling
-Reduced maintenance thanks to a very long life expectancy
-One single screw driver for input and output
Different types are available :
-SAL and SAM range : with screws connection - transparent protective cover – « ready to use » on 22,5 and 45mm heatsinks,
-SUL and SUM range : with pluggable connector on inputs - removable flaps for protection - « ready to use » on 22,5 and 45mm heatsinks.
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Application
FEAS Solid State reversing contactors are electronic load relays, whitch be used for fast and loudless switching of three-phase asynchronous motors with be operated in both rotating directions. Because of the contactless operation the live span is nearly unlimited. Robust power semiconductors are implemented and they are schwitching in voltage zero crossover and generate so no additional high frequency noise pulses.
The equipment is integrated into a functional and sturdy case, which makes it insensitive to choke stress and vibrations. Also an application in aggresiv environment is unproblematic.
An installed temperature monitoring, signals an excessively high temperature rise before the equipment protects themselves and disconnects. If the implemented phase monitoring detect the loss of one phase, the start of the motor is retarded and this status is signaled, untill all three lines are present.
Operational principle
The semiconductor operates according to the principle of a zero crossover or a zero voltage switch. After applying the control voltage the power output (load circuit) of the semiconductor relay is opened, once the first zero point of the line voltage is reached. The typical time of response is shorter than the half period duration that means less than 10mS with 50Hz frequency.
Version
Installed and completely potted in an aluminum case for direct mounting on DIN rail.
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