To reader and relevant architect, using avometer to measure dynatron to cite a base is difficult problem no longer, but actually, avometer can undertake metrical to dynatron not only, return at the same time can the working status of differentiate dynatron, the article detects to avometer the pertinent question of dynatron job status has detailed explanation. E.g. , if a result is put,do not have output, and among them a dynatron is measured with avometer base and blast off extremely the voltage between is 0V (measure on circuit board) , whether did that mean this dynatron to damage? From the point of the condition that give out, cannot judge this dynatron according to existing data broken, need notices here at 2 o'clock: Result those who put output to ensure is this dynatron it is to do amplifier to still use as switch canal, in addition, if as amplifier, should check what should be in charge of to slant above all so buy circuit (if not have,slant buy circuit, this base should be negative worth when extremely regular job) . Can you judge through avometer so the dynatron stand or fall on circuit board? Is dynatron job in enlarge, saturated, up to what wait for different level each extremely can voltage be what kind of? Very apparent, this kind of method can offer reference only. Still need to cut off the power detect online resistor even debus this dynatron detects again with avometer. As to dynatron each extremely voltage can be what kind of, below enlarge condition: Uc>Ub>Ue (PNP) or (Ue>Ub>Uc (NPN) , launch a knot to slanting namely in other words, market report knot slants instead. Full each condition: Emissive knot is slanting knot of; market report is slanting. Off-state: Emissive knot slants instead knot of; market report slants instead. Specific voltage is decided according to actual condition, but should satisfy afore-mentioned requirements from beginning to end. Say avometer is right handily below the measurement technique of dynatron. Do not need open circuit above all, the voltage file that uses avometer directly can judge crystal dynatron to be in which condition. Measure collector, blast off extremely voltage, be in about 0. 3~0.
Between 6v, be in saturated condition. Measure collector, blast off extremely voltage, almost as equal as power source voltage, at off-state. Measure collector, blast off extremely voltage, interpose at 1.
0v~ (power source voltage - 1) between V, be in all sorts of enlarge condition. Base - blast off extremely voltage is 0, but can not be dynatron attaint for certain right now, need inspects particular case analysis. The article amounts to the person's analysis through the technology, help everybody designed a novice to analyse avometer to work to dynatron the analysis of condition, refer to among them a few doubt answer. Hope a few skill that everybody can undertake dynatron is measured to using avometer after had read the article master somewhat, design technological process becomes more fluent when. CNC Milling