#2N3055 TRANSISTOR DATASHEET PDF PDF#
1.2 Features n Integrated Zener diode and bipolar transistorĬatalog Datasheet MFG & Type PDF Document Tags 2007 – TRANSISTOR L7809CV. Product profile 1.1 General description Integrated Zener diode and NPN bipolar transistor in one package. It is called pass transistor be- cause total current to be regulated passes through it. In this set-up, the transistor behaves like a vari-able resistor whose resistance is determined by the base current. It is also called emitter-follower regulator because the voltage at the emitter follows the base voltage.
#2N3055 TRANSISTOR DATASHEET PDF SERIES#
Transistor Series Voltage Regulator The circuit is shown in Fig. Power Supply Using 7800 Series IC Regulators the 7800 family of IC regulators, the last two typical circuit application he information of Table 8.1 is used to select the turns ratio (n=N 1/N 2, Take the average of V inmax and V inmin of the particular IC regulator to ¾ ides a division by 2, so the peak In digits indicate the output voltage of the device. Product profile 1.1 General description Low-power voltage regulator diodes in a small SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package. The transistor Q1 is the series element, which controls the amount of input voltage that gets to the The transistor Q1 is the series element, which controls the amount of input voltage that gets to theġ. PROTECTION THERMAL OVERLOAD PROTECTION LOW BIAS CURRENT …Ī simple Series Voltage Regulator is shown. Many simple DC power supplies regulate the voltage using either series or shunt regulators, but most apply a voltage reference using a shunt regulator such as a Zener diode, avalanche breakdown diode, or voltage regulator tube.ĪDJUSTABLE VOLTAGE AND CURRENT REGULATOR ADJUSTABLE OUTPUT CURRENT UP TO 2 A (GUARANTEED UP TO T j = 150 ☌) ADJUSTABLE OUTPUT VOLTAGE DOWN TO 2.85 V INPUT OVERVOLTAGE PROTECTION (UP TO 60 V, 10 ms) SHORT CIRCUIT PROTECTION OUTPUT TRANSISTOR S.O.A. That means that current can flow out the emitter of the transistor, but current can not flow into the emitter. If you apply a voltage to the emitter that is greater than what the supply is set to put out, then you reverse bias the transistor. A simplified schematic of a series regulator is shown in Figure 3. The answer is that the typical power supply uses a series regulator. Al- datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors. The voltages available allowthese regulators to be used in logic systems, instrumenta-tion, HiFi, and other solid state electronic equipment.
Thusĭepartment of Electronics & Communication Engineering LABĪB32 Transistor Series Voltage Regulator Tom website As shown in the figure below, the collector and emitter terminals of the transistor are in series with the load. The circuit consists of an N-P-N transistor and a zener diode. It is called so because the transistor used is connected in an emitter follower configuration. Zener Controlled Transistor Series Voltage Regulator Such a circuit is also named an emitter follower voltage regulator. If the current is low enough an op amp is a decent regulator all by itself. Think op amp with a voltage reference (zener) and a series pass transistor.The S-1701 Series, developed based on CMOS technology, is a voltage regulator with a reset function and integrates a high-accuracy voltage detector with on-chip delay circuit and a positive voltage regulator with a low dropout voltage and high The use of a series pass transistor is essential when the output current demand is high, and/or when there is a large difference between the output voltage and the power supply voltage (i.e., the voltage … The S-1212B/D Series operates at the maximum operation voltage of 36 V and a low current consumption of 6.5 μA typ., and has a built-in low on-resistance output transistor which provides a very small dropout voltage and a large output current. A simplified ‘series’ voltage regulator circuit is …
Regulator places the regulating element in series with the load, and it is the voltage across the regulating element that is varied to adjust the load voltage. The L78 series of three-terminal positive regulators is available in TO-220, TO-220FP, D²PAK and DPAK packages and several fixed output voltages, making it useful in a wide range of applications. Which of the following is not an essential element of a dc power supply a.