NTC phase asynchronous motor protection circuit

Posted on Mar 28, 2007

Semiconductor thermistor embedded thermal protection element belongs, it is sensitive to temperature, temperature error of 5. Its reliability, small size (diameter 3. Smm), easy to install, easy to embed winding, use it as a temperature sensing element can

NTC phase asynchronous motor protection circuit
Click here to download the full size of the above Circuit.

effectively reflect the electrical winding temperatures motivation. Thermistor on the three-phase stator windings, close to the wire, with epoxy cement. Thermal resistance has a negative temperature coefficient thermistor (NTC) and positive temperature coefficient thermistor (PTC) of the points. Circuit shown in Figure 4-1. Wherein Figure 4-1 (b), (c) only one shown protection circuits, the main circuit not shown. They are a switch circuit consisting of a single tube amplifier. Thermistor brother., R. ., R., The choice RRC6 type or MF-15 type (lokfl, 20 ), this thermistor in about lkfl 100 when, 110 at about 0.6k, Cl.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Nearly half duty cycle multlvibrator
    Twin Bell Circuit Circuit
    Metronome Generator Circuit using NE555
    Driving a Capacitive Load with an H-bridge
    A3952S stepper motor controller circuit design
    h-bridge basics
    Current amplification for driving stepper motor
    EM4294 13.56MHz Crypto Analogue Front End Circuit For High Secure RFID Communication
    Step-Down Converter Controller
    Single Supply Active Filter with Virtual Ground
    Analogs ADP1821 Step Down DC-to-DC Converter
    USB Mono FM Transmitter
    Touch-type FET stepless dimmer
    Drag dedicated traffic control system