Comparator and Zero Crossing Detectors (ZCD) is all too familiar circuit required in power electronics for control applications. This control can be to turn ON a Thyristor. For example, it is desired to set the output of a circuit TRUE (ON State) whenever a control signal is issued. This control signal is issued by setting either a variable DCvoltage or a variable amplitude pulse generator. This amplitude will be used as a signal to change the output state. This signal is called as ZCD. In any case the amplitude of control signal can not be greater than analog signal itself.
Suppose it is required to set the output to TRUE state whenever the control signal crosses say+10V, then the second input of the operational amplifier is used to set to trigger at +10V. In other words, this second signal becomes a control voltage required to perform ZCD.
This trainer consists of a monolithic FET input operational amplifier, which compares the actual signal, and ZCD operation is performed. In order to perform this experiment a ZCD with a two way switch is used. In one position an internal variable DC signal can be connected, in other position an external variable amplitude pulse generator can be connected. For Analog signal terminal an external function generator can be connected. You can observe input, ZCD and output waveforms on a CRO. This trainer requires an additional Lab power supply of 12V @ 500mA.
COMPARATOR / ZERO CROSSING DETECTOR. MODEL IBL-PE-12 for Institutional & Laboratory Applications
COMPARATOR / ZERO CROSSING DETECTOR. MODEL IBL-PE-12 is designed for engineering colleges, technical universities, STEM laboratories, and TVET training centers. Interlabs manufactures export-quality engineering training systems for institutional procurement projects, technical education programs, laboratory modernization, and international supply requirements across Zambia, Botswana, Kenya, and Nigeria.
Applications of COMPARATOR / ZERO CROSSING DETECTOR. MODEL IBL-PE-12
This equipment is widely used for technical education, engineering practical training, industrial automation learning, and laboratory demonstrations. It supports practical learning environments, institutional laboratory setups, technical training programs, and advanced educational applications.
Suitable For
- Universities and educational institutions
- Research laboratories and training centers
- Government and institutional procurement projects
- African laboratory infrastructure programs
- Technical and vocational education facilities
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- Suitable for institutional and government projects
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Interlabs supplies laboratory equipment and institutional training systems to buyers across Zambia, Botswana, Kenya, and Nigeria with secure export packaging, documentation support, and international logistics assistance.