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7612606 Low voltage current and voltage generator  
A bandgap reference circuit which is operable in low supply conditions is described. Such a circuit includes a second amplifier and a resistor at the output of a bandgap reference cell to create a...
7609106 Constant current circuit  
A constant current circuit includes a first current mirror composed of a first transistor formed on a first current path and a second transistor formed on a second current path, a second current...
7606674 On die thermal sensor  
An on die thermal sensor includes a bandgap unit for generating a first voltage containing temperature information, a tracking unit for tracking a voltage level of the first voltage, and a low...
7605577 Start-up circuit for a bandgap circuit  
A startup circuit operating with a bandgap circuit having a predetermined node with a current change proportional to temperature change and a current source connected to the predetermined node...
7602236 Band gap reference voltage generation circuit  
There is provided a band gap reference voltage generation circuit capable of reducing wake up time during transition from an idle mode to a normal mode and further capable of removing the RF noise...
7602230 Control integrated circuit for a charge pump  
An integrated control circuit for a charge pump includes a first device for regulating the output voltage of the charge pump and a second device for increasing the output voltage from the charge...
7598799 Bandgap voltage reference circuit  
A bandgap voltage reference circuit with an inherent curvature correction which comprises an amplifier having an inverting terminal, a non-inverting terminal and an output terminal is described. A...
7595626 System for matched and isolated references  
A reference current generator configured to produce matched and isolated current references is disclosed. The reference current generator includes a primary reference generator operative to produce...
7592859 Apparatus to compare an input voltage with a threshold voltage  
Apparatus to compare an input signal to a threshold level are disclosed. An example circuit described herein includes a Widlar bandgap circuit to receive the input signal, an intermediate stage...
7589573 Startup circuit and method  
A startup circuit provides a single connection to a node of a reference or other circuit to be started. The startup circuit injects high current into devices to start a reference circuit. The...
7589513 Reference voltage generator circuit  
A reference voltage generator circuit comprises a first current path and a second current path. The first current path is formed between an input terminal supplied with a first reference voltage...
7583135 Auto-nulled bandgap reference system and strobed bandgap reference circuit  
An auto-nulled bandgap reference system employing a substrate bandgap reference circuit with primary and auxiliary amplifiers and a switching circuit which in a first mode develops a voltage to...
7581882 Temperature sensor  
A bandgap reference circuit inputs a reference potential trimming signal therein, generates a reference potential using PN-junction diode characteristics and generates a first temperature-dependent...
7580299 Circuit for generating a reference voltage  
A circuit for generating a reference voltage in a memory device includes a switching section, a first voltage generator, a second voltage generator and a comparator. The switching section controls...
7579899 Circuit and method for temperature detection  
A temperature detection circuit includes a temperature dependent voltage generation circuit for generating a temperature dependent voltage VR, a bandgap circuit for generating a temperature...
7576599 Voltage generating apparatus  
A voltage generating apparatus including a current source, a first voltage source, a second voltage source, a first differential pair, a second differential pair, a voltage divider and a current...
7576598 Bandgap voltage reference and method for providing same  
A bandgap voltage reference circuit is provided that includes a PTAT source whose polarity reverses at a determinable temperature. The PTAT source is combined with a CTAT source in a manner to...
7576595 Buffer circuit  
The objective of the present invention is to present a buffer circuit by which a load can be driven at a high speed while restraining an increase in power consumption. A current input to npn...
7573324 Reference voltage generator  
A reference voltage generator according to an embodiment of the present invention includes: a voltage setting circuit generating a first voltage having a predetermined voltage difference from an...
7570107 Band-gap reference voltage generator  
A band-gap reference voltage generator is provided that is capable of being used at low voltage simultaneously with adjusting a reference voltage.
7570090 Fast power-on detect circuit with accurate trip-points  
A power-on reset circuit includes a first PNP transistor having an emitter, a base, and a collector coupled to ground; a second PNP transistor having an emitter coupled to the base of the first...
7564298 Voltage reference circuit and current reference circuit using vertical bipolar junction transistor implemented by deep n-well CMOS process  
A voltage reference circuit and a current reference circuit using a vertical bipolar junction transistor (BJT) implemented by a deep N-well complementary metal-oxide semiconductor (CMOS) process,...
7560979 Reference voltage devices and methods thereof  
A reference voltage device and a reference voltage generating method thereof. The reference voltage device comprises a bandgap unit, a voltage generating unit, a comparator, and a calibration...
7557642 Low supply voltage bandgap system  
A system and a method is disclosed for allowing bandgap circuitry to function on a low supply voltage integrated circuit, and for using the reference voltage (Vbg) generated by the bandgap...
7557558 Integrated circuit current reference  
An IC current reference includes a reference voltage V ref , a current mirror, and a transistor connected between the mirror input and a first I/O pin and which is driven by V ref . A resistor...
7550958 Bandgap voltage generating circuit and relevant device using the same  
A bandgap voltage generating circuit includes a circuit coupled to a first node and a second node, driving the first and the second nodes to the same voltage level. A first impedance element is...
7541862 Reference voltage generating circuit  
A reference voltage generating circuit is described. The circuit includes a current generating section that generates a first current having a positive temperature coefficient, a voltage generating...
7535285 Band-gap voltage reference circuit  
A reference circuit. Included are first and second reference circuit blocks, first and second controllable current sources connected to supply current through the first and second reference circuit...
7532445 Transient voltage clamping circuit  
A circuit for transient voltage clamping, the circuit being internal to a motor driver ASIC for a hard drive and including a power transistor for sinking a power supply voltage subjected to...
7532063 Apparatus for generating reference voltage in semiconductor memory apparatus  
An apparatus for generating a reference voltage in a semiconductor memory apparatus according includes: a first voltage generating unit configured to generate a voltage proportional to temperature;...
7525365 System and method for providing an offset voltage minimization circuit  
A system and method is disclosed for providing an offset voltage minimization circuit for an amplifier circuit. The present invention comprises a flip flop zero amplifier circuit that is capable of...
7514998 Wide-temperature integrated operational amplifier  
The present invention relates to a reference current circuit. The reference circuit comprises a low-level current bias circuit, a voltage proportional-to-absolute temperature generator for creating...
7514988 Band gap constant-voltage circuit  
Provided is a band gap constant-voltage circuit capable of achieving a quick startup time to thereby preventing an output voltage from being stabilized at 0 V due to noise or the like even under...
7514987 Bandgap reference circuits  
Bandgap reference circuits capable operating in low voltage environments. In the bandgap reference circuit, a current generation circuit generates an output current obtained by combining a first...
7511568 Reference voltage circuit  
Disclosed is a reference voltage circuit including control means for performing control so that the voltage of a first current-to-voltage conversion circuit becomes equal to the voltage of a second...
7511567 Bandgap reference voltage circuit  
A reference voltage circuit includes first circuitry that generates a thermal voltage that is approximately proportional to absolute temperature, a first voltage multiplier, second circuitry that...
7511566 Semiconductor circuit with positive temperature dependence resistor  
A band gap reference circuit is configured by connecting an emitter of a transistor, having the base and the collector thereof grounded, to an internal circuit, and by connecting an emitter of...
7505240 Overcurrent protection device for semiconductor element  
An overcurrent protecting device for protecting a semiconductor element from an overcurrent includes: the semiconductor element; a shunt resistor for detecting the overcurrent when the electric...
7495505 Low supply voltage band-gap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying band-gap reference current  
A low supply voltage band-gap reference circuit is provided, which includes a positive temperature coefficient current generation unit and a negative temperature coefficient current generation...
7495504 Reference voltage generation circuit  
In a reference voltage generation circuit, a bandgap reference circuit (BGR circuit) 1 includes diode element D 1 and D 2 having different current densities, three resistive elements R 1 , R 2 ...
7489184 Device and method for generating a low-voltage reference  
A voltage reference generating method, source, memory device and substrate containing the same include a voltage reference generator comprised of a bandgap voltage reference circuit including a...
7486129 Low power voltage reference  
A voltage reference includes a first cell configured to receive a first proportional to absolute temperature (PTAT) current and a second cell configured to receive a second PTAT current. The first...
7482859 Automatic current trimming method & circuits  
Techniques pertaining to a circuit architecture capable of controlling a current source to a predefined precision are disclosed. According to one aspect of the present invention, an automatic...
7471152 Automatic gain control and tuned low noise amplifier for process-independent gain systems  
A tuned low-noise amplifier is disclosed. A device in accordance with the present invention comprises a first current source, a second current source, a comparator, coupled to the first current...
7471138 DC output voltage circuit with substantially flat PSRR  
The disclosed technology provides circuitry for providing a DC output voltage. In accordance with one aspect of the invention, the circuit includes a power connection and a transistor connected to...
7463012 Bandgap reference circuits with isolated trim elements  
A bandgap reference circuit utilizes differential transistors to generate a temperature-independent bandgap voltage. In place of conventional trim elements that are connected in parallel to and...
7459961 Voltage supply insensitive bias circuits  
A voltage-insensitive circuit includes a second circuit, and a biasing means for providing a constant bias current to the second circuit, the bias current being insensitive to power fluctuations of...
7456679 Reference circuit and method for generating a reference signal from a reference circuit  
A reference circuit includes: (a) a first reference circuit having a reference signal and a ΔV BE loop; and (b) a modification circuit using a first voltage to change a first current in the ΔV...
7446599 Reference voltage generator  
A reference voltage generator is provided. The reference voltage generator includes a bandgap reference circuit, a level shifter and a voltage divider. The bandgap reference circuit includes a...
7446598 Bias circuits  
A bias circuit for use in bandgap voltage reference circuits and temperature sensors comprises a pair of transistors (Q, Q2), the first of which (Q1) is arranged to be biased at an emitter current ...
Matches 1 - 50 out of 375 1 2 3 4 5 6 7 8 >