The hall-sensor transistorized ignition system is a non-contact ignition system. Instead of interrupter contacts, an ignition distributor with a maintenance-free Hall sensor is used. No ignition capacitor required. The Hall sensor consists of a non-contact magnetic sensor and a screen mounted on the ignition distributor shaft. The Hall sensor controls the TSZ-H switch and as a result determines the moment of switching on/off the current in the ignition coil. Thus, the Hall sensor determines the moment of ignition.
If the screen enters the air gap of the magnetic sensor, then a magnetic field is created around the semiconductor element. The Hall sensor turns on the current in the ignition coil. If the screen leaves the air gap of the magnetic sensor, then the current in the ignition coil is turned off and ignition occurs.
The TSZ-H ignition switch supplies voltage to the ignition coil only for the period of time necessary to charge the primary winding. As a result, power losses in the ignition coil and in the commutator can be minimized.
To protect the switch and the ignition coil from severe overheating, the control device, if the ignition is on and the engine is not running, turns off the power supply to the ignition coil after about 1 second.
For safety reasons, the ignition coil contains a plugged hole with a diameter of 5.5 mm. It is designed to purposefully remove the filling material of the ignition coil in the event of overheating in the event of a short circuit.
Functions of the TS7-I ignition system for 1.2-/1.3-l engines (since August 1982) correspond basically to the functions of the TS2-H system. These systems use an inductive sensor instead of a Hall sensor.
In addition, by reducing the electronic parts, the switch can be placed in the ignition distributor.
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