For the operation above maximum frequency – the charging process should be even faster but it cannot follow. Although the zero voltage switching can be performed properly – the charging process at the switch-off transition cannot be abrupt and the waveform deviates from the ideal shape – degrading the efficiency. NPN and PNP transistors are interchangeable if you remember one simple rule: A bipolar transistor is essentially two back-to-back diodes with the base being the common connection. On the left is an NPN (negative-positive-negative) transistor and on the right is a PNP (positive-negative-positive) transistor.By Seunghoon Jee Junghwan Moon Jungjoon Kim Junghwan Son Bumman Kim – The switching behavior of Class-E power amplifiers (PAs) is described. ③ Are NPN and PNP transistors interchangeable? ② What is the DC current gain in TIP3055?ĭC Current Gain – hFE = 20-70 IC = 4.0 Adc Its corresponding PNP transistor is TIP2955. It is the best device for power swapping circuits, parallel and series controllers (regulators), output phases and high power amplifiers. TIP3055 is a silicon epitaxial-ignoble NPN transistor, which is assembled in TO-218 malleable parcels. TIP3055 FAQ ① What is TIP3055 transistor? Note: Please check their parameters and pin configuration before replacing them in your circuit. You can download the datasheet the link given below. On the process side ST is leading the way with advanced FD-SOI (Fully Depleted Silicon-on-Insulator) technology. STMicroelectronics is the result of the 1987 marriage between famed semiconductor companies SGS Microelettronica of Italy and Thomson-CSF Semiconductor of France. In an application such as power supplies, the metal are the most recommended. Heavy envelope are better because dissipate more heat as well.

Also note that there are 2N3055 in lightweight aluminum housings and heavy metal casing. Thus, an assembly in which the transistor will work at the limit, the metallic type is also as indicated. The electrical characteristics of the two transistors, TIP3055 and 2N3055 are the same, however, by its casing, the metal 2N3055 has a slightly greater ability to dissipate heat. The TIP2955 is a complementary PNP transistor for the TIP3055.

It is related to the load.įollowings are TIP3055 Symbol, Footprint, and 3D Model. The collector is for the current inside drive. The base administers the biasing of the transistor. The emitter is for an external drive of current. These are the main pinout TIP3055 which are well-defined beneath.

For low distortion complementary designs.

This video for how to make high current voltage regulator using TIP3055 TRANSISTOR &LM317T voltage regulator IC and 10K POT Meter.

Video: High current DC voltage regulator (TIP3055+LM317T)

Data set transistor final