- I NEED A SIMPLE CIRCUIT TO TEST A 2N3055 TRANSISTOR DRIVER
- I NEED A SIMPLE CIRCUIT TO TEST A 2N3055 TRANSISTOR SERIES
where the device is non-conductive with 0 V applied to the gate, operating like a switch). First consider the procedure for testing an enhancement-mode MOSFET (i.e. The usual testing procedure is for use with a digital multimeter in the diode test-range with a minimum of 3.3 V over d.u.t. A common multimeter can quickly do in-circuit tests, which are not totally definitive but generally provide acceptable go/no-go information, using either the meter’s diode-check or ohms mode. The sensible alternative is to test the transistor. Also, it is not reliable because an outside defective component can instantly destroy the replacement with no visible evidence. One approach to troubleshooting is to substitute a known good component, but that is a costly way to go. If you are designing a PCD or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions.A bad transistor can sometimes be detected by its partly burned or distorted appearance, but more often there is no visible indication.
I NEED A SIMPLE CIRCUIT TO TEST A 2N3055 TRANSISTOR DRIVER
I NEED A SIMPLE CIRCUIT TO TEST A 2N3055 TRANSISTOR SERIES
Anything more than 5mA will kill the Transistor hence a resistor is always added in series with base pin. As mentioned the biasing current should maximum of 5mA. As discussed a transistor will act as an Open switch during Forward Bias and as a Closed switch during Reverse Bias, this biasing can be achieved by supplying the required amount of current to the base pin. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around 660 mV.
This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (V CE) or Base-Emitter (V BE) could be 200 and 900 mV respectively. When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter.
To bias a transistor we have to supply current to base pin, this current (I B) should be limited to 5mA. The maximum amount of current that could flow through the Collector pin is 100mA, hence we cannot connect loads that consume more than 100mA using this transistor.
Note: Complete Technical Details can be found at the BC547 datasheet given at the end of this page.īC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200īC547 transistor has a gain value of 110 to 800, this value determines the amplification capacity of the transistor.