KR880005501A - Thermal Current Sources and Integrated Voltage Regulators - Google Patents

Abstract

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Description

Thermal Current Sources and Integrated Voltage Regulators

Since this is an open matter, no full text was included.

1 is a schematic diagram of a thermal current source of the invention.

2 is a schematic representation of a second column current source of the invention.

3 is a schematic diagram of a third column current source of the invention.

Claims (10)

An integrated voltage regulator comprising: first and second transistors connected to emitters of a first transistor to sink a portion of the current, the first and second transistors being operated at different current densities to generate a difference voltage having a predetermined temperature coefficient; A third transistor having a collector-emitter line connected between the emitter of the second transistor and a circuit node, and a current flowing through the third transistor having the predetermined temperature coefficient and of the second transistor having a predetermined magnitude. A thermal current source device comprising a feedback circuit arrangement responsive to said second transistor for providing a signal trapped at the base of said third transistor for the third transistor to sink current from an emitter; An electric current with a predetermined magnitude and temperature coefficient that changes inversely to the temperature coefficient of the current flowing through the transistor To generate a regulated voltage across the second resistor coupled between the emitter and the base of the third transistor to provide a flow of to the circuit node and a magnitude and a temperature coefficient that can be set independently. And a third resistor connected to the circuit node such that a sum of the current flowing through the third transistor and the second resistor flows. 2. The integrated voltage regulator of claim 1, comprising a device for coupling the base of the third transistor to the output of the regulator. 3. The integrated voltage regulator of claim 2, comprising a fourth resistor coupled to the base of the third transistor and interconnected between the emitter of the first transistor and the first resistor. 4. The feedback circuit arrangement of claim 3, wherein the feedback circuit arrangement comprises: a fourth transistor having a base connected to the collector of the second transistor and a collector-emitter line coupled between the base of the third transistor and the first power supply conductor. Integrated voltage regulator comprising a. 5. The apparatus of claim 4, further comprising: a current source device coupled between the first power source conductor and the collectors of the first and second transistors to provide a current; and an apparatus for connecting the collector of the first transistor to a base. Integrated voltage regulator comprising a. 6. The method of claim 5, wherein the emitter region of the first transistor is N times the second transistor emitter region, where N is positive, and the feedback circuit arrangement is a current conducted by the first and second transistors. An integrated voltage regulator, characterized in that to make substantially the same. A thermal current source, comprising: a first and a second transistor having bases coupled together and arranged to conduct current through respective collector-emitter conducting lines, and a collector conductive coupled to the emitter of the second transistor. A third transistor having a line and a first and a second arranged such that a current flows through the first transistor and also through a first resistor and a portion of the current flows through the second transistor and also through a second resistor. And the resistance and the current flowing through the second transistor are proportional to the current flowing in the first transistor, thereby reducing the difference between the two transistor emitters having a predetermined TC and the regulated magnitude and the predetermined TC. Generates a collector current of the third transistor, the third transistor having a current from the second transistor In order to provide a bias current to make a current supply to the conductive heat sink, it characterized in that it comprises a feedback circuit device coupled between the base of the third transistor and the collector of the second transistor. 8. The emitter and first power supply conductor of claim 7, wherein an interconnection point of the first and second resistors is connected to the base of the third transistor, and the feedback circuit arrangement is coupled to the base of the third transistor. A fourth transistor having a collector coupled to the base and a base coupled to the collector of the second transistor, the fourth transistor comprising a second power supply conductor and an emitter of the fourth transistor to sink a predetermined current from the fourth transistor. And a circuit arrangement coupled to the heat current source. The method of claim 8, wherein the emitter region of the first transistor is N times larger than the emitter region of the second transistor, where N is positive, and the thermal current supply language connects the collector of the first transistor to a base thereof. A first conductive device for connection, a current source device for supplying current to the collectors of the first and second transistors, and an emitter of the third transistor to the second global source conductor and the base of the And a second conductive device for connecting to the output of the circuit. 10. The fifth transistor of claim 9, wherein the thermal current source has a base coupled to the collector of the second transistor, a collector coupled to the first power supply conductor, and a fifth transistor having an emitter coupled to the base of the fourth transistor. Wherein the first conductive device comprises a fifth transistor having a base coupled to the collector of the first transistor, a collector coupled to the first power supply conductor, and an emitter coupled to the base of the first transistor. And a sixth transistor having an emitter coupled to the base of the fourth transistor, a collector coupled to the first power supply conductor, and a base coupled to the collector of the second transistor. . ※ Note: The disclosure is based on the initial application.