TH20506A - Voltage regulator circuit - Google Patents

Abstract

This invention will involve a voltage regulator circuit. Which series of transistors That allows current to flow through And the amplifying transistors are complementary, the applied current flows from the DC source through the path of the emitter collector pin junction. Of that set of transistors to the load The amount of current is controlled by the control signal feedback. With a negative value That is connected from the regulated output voltage to the bass leg of the transist. Router that is expanding Which will continue to drive the base leg of the transistor set Emitter leg of The amplified transistor is connected to a voltage that is less than the regulated DC output voltage, provided that the voltage driving one pair of the transistor is reduced.

Claims (4)

1. A voltage regulator circuit consists of an input point (12) for an uncontrolled DC input voltage, an output point (18) for generating a regulated DC voltage. , 66) for generating a control signal that responds to the comparison of the regulated DC voltage (VO) with the reference voltage. A control path (Q1, Q2) that responds to such control signals. Such control path (Q1, Q2) is connected between the aforementioned input point (12) and output point (18) .Such control path (Q1, Q2) consists of one transistor ( Q1) which is type one. The first transistor (Q1) has one pin (16) and a control pin (base) and a second transistor (Q2) that is a kind to complement when Compared to the first transistor (Q1) said the second transistor (Q2) has a pin. The second (emitter) and control pin (base) of the second transistor (Q2) receive the signal. By means of such control signal (46, 66) path, the first (collector) of the second transistor (Q2) generates The amplified value of the aforementioned control signal is given to the aforementioned control pin (base) of the first transistor (Q1) and has the characteristics that A network of signaling input circuit (24, 30) that is connected between the said output point (18) and the aforementioned second (emitter) pin of the aforementioned second transistor (Q2) to make The second (emitter) leg of the aforementioned second transistor (Q2) has a drop of the said regulated DC voltage at the aforementioned output point (18). 2. The voltage regulator circuit according to claim 1 has the characteristics that The aforementioned feedback circuit network (24, 30) is connected between the second pin (emitter) of the second transistor (Q2) and the said output point (18) includes the Divide the voltage (24, 30) consisting of the first resistance (24) and the second resistance (30) connected between the said output point (18) and the second reference potential ( Emitter) as mentioned above. The second (Q2) is connected to the first (24) and the second (30) resistance junction. 3. The voltage regulator circuit according to claim 1 has the characteristics that The first leg of the first transistor (Q1) is the collector pin, the control pin of the first transistor (Q1) is the base pin. The first leg of the Transistory. The second (Q2) is the collector pin. And the second leg of the second transistor (Q2) is the emitter pin. And the said control pin of the second transistor (Q2) is the base pin. 4. The voltage regulator circuit according to claim 1 has the characteristics that The first transistor (Q1) is a PNP transistor and the second is an NPN transistor.