Matches 301 - 350 out of 395 < 1 2 3 4 5 6 7 8 >
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4859928 CMOS comparator bias voltage generator  
An apparatus for generating a CMOS comparator bias voltage for a CMOS comparator includes a dummy comparator having a negative input and a positive input coupled together to receive a common mode...
4857823 Bandgap voltage reference including a process and temperature insensitive start-up circuit and power-down capability  
A bandgap voltage reference start-up circuit configured to initiate bandgap reference operation over an extended temperature range while being relatively insensitive to the effects of fabrication...
4843303 Voltage regulator circuit  
A voltage regulator circuit arranged such that a constant current source through which a current of an integral multiple of a current from a reference current source is connected to a...
4835455 Reference voltage generator  
A voltage reference generator based on a pair of differentially connected transistor devices, having a current sink at that connection, with one leg of the differential pair adapted for connection...
4833342 Reference potential generating circuit  
A reference potential generating circuit according to this invention includes a first insulated gate field effect transistor of an enhancement type, a second insulated gate field effect transistor...
4827205 On-chip voltage supply regulator  
A voltage regulator fabricated on an integrated circuit chip to provide regulated voltage for the chip assures that the integrated chip is operational before conventionally provided external...
4825142 CMOS substrate charge pump voltage regulator  
A substrate bias voltage regulator (10) is disclosed having a voltage divider (22) for generating a reference voltage, a low gain stage (24) for developing a drive voltage independent of the supply...
4820967 BiCMOS voltage reference generator  
A BiCMOS voltage reference generator circuit generates and maintains a reference voltage within 3 mV over an 80° C. temperture range and over a 1 volt change in power supply level. The circuit...
4816742 Stabilized current and voltage reference sources  
Various voltage and current sources which are substantially independent of the positive supply rail are provided, some of which are also temperature independent. The basic NPN-type transistor...
4810962 Voltage regulator capable of sinking current  
A voltage regulator for regulating the voltage at a first node, comprising a first voltage supply; a first node; a first transistor with a control terminal connected to the first node; ...
4795961 Low-noise voltage reference  
A band-gap voltage reference having reduced output voltage noise. The invention embraces several novel concepts, including the optimization of transistor area ratios as used in the band-gap device,...
4792749 Power source voltage detector device incorporated in LSI circuit  
A voltage regulator for an output voltage of a solar cell is formed together with an LSI circuit on a single chip. The voltage regulator includes a bias circuit as a CMOS current mirror circuit...
4789819 Breakpoint compensation and thermal limit circuit  
A voltage reference circuit including a Brokaw Cell band-gap reference circuit is provided with breakpoint compensation to adjust the temperature coefficient of the reference voltage provided by...
4788455 CMOS reference voltage generator employing separate reference circuits for each output transistor  
An internal power supply voltage generator for generating an internal power supply voltage for a semiconductor integrated device includes first and second reference voltage generators which produce...
4786855 Regulator for current source transistor bias voltage  
A bias control loop forms a voltage regulator for providing the bias voltage to the collectors of bipolar current source transistors in a linear circuit. The bias loop functions by maintaining...
4780624 BiMOS biasing circuit  
The circuit comprises a first and a second transistor provided with the sources coupled to one end of a supply voltage and the gates coupled to one another, and a third and fourth transistor...
4774452 Zener referenced voltage circuit  
A zener diode is connected at one end via a first impedance to a first power terminal. The base-to-emitter junctions of first and second transistors are connected in parallel between the other end...
4771228 Output stage current limit circuit  
An amplifier output stage includes current limiting circuitry for limiting the current in the output stage if the output terminal is shorted to ground. The current sinking and the current sourcing...
4751463 Integrated voltage regulator circuit with transient voltage protection  
An integrated circuit voltage regulator is of the kind having a pass transistor connected collector-to-emitter between the input V CC conductor and the regulated-voltage output conductor, a...
4751454 Trimmable circuit layout for generating a temperature-independent reference voltage  
Circuit for generating a temperature-independent reference voltage includes transistors forming current sources, and a band gap circuit having bipolar transistors and being supplied by the current...
4742292 CMOS Precision voltage reference generator  
A differential voltage, set by threshold differences of a natural FET and an implanted FET, is amplified by a switched capacitor amplifier and filtered by a filtering circuit to provide an accurate...
4737663 Current source arrangement for three-level emitter-coupled logic and four-level current mode logic  
Three-level ECL or four-level CML are feasible when a low drop current source is incorporated in the series-gated arrangement. The low drop current source consumes less than one-tenth of the...
4736125 Unbuffered TTL-to-ECL translator with temperature-compensated threshold voltage obtained from a constant-current reference voltage  
A circuit for translating TTL-to-ECL-type signals utilizes an unbuffered emitter-coupled transistor pair for shifting signal levels. The emitter-coupled transistor pair operates by switching a...
4733160 Circuit for generating a reference voltage having a predetermined temperature drift  
A circuit for generating a reference voltage with a predetermined temperature drift includes a supply circuit; output terminals; a series circuit connected to the supply circuit and between the...
4714872 Voltage reference for transistor constant-current source  
A voltage reference circuit (10) for a constant-current source transistor (16) of the bipolar type provides an output voltage in two components. The first voltage component varies in accordance...
4692689 FET voltage reference circuit with threshold voltage compensation  
A voltage converting circuit has an output MIS transistor which gives a low output impedance and outputs an intermediate level of power source voltage. The output level is set with a high accuracy...
4686452 Reference-voltage source for replicating a terminal voltage of a saturated transistor  
The circuit derives Vbep, the base-emitter voltage of a saturated PNP transistor, from the PNP portion of a four-layer (PNPN) silicon-controlled rectifier (SCR) so as to exactly match the...
4683416 Voltage regulator  
A voltage supply circuit for supplying a regulated output voltage the magnitude and temperature coefficient of which can be independently controlled. A pair of transistors and associated circuitry...
4683351 Impedance maintenance circuit for telephone interface  
Circuitry for supplying power to low-level DIALER portions of a telecommunications integrated circuit device comprises a PNP current sourcing transistor mirrored to a bypass transistor. The bypass...
4677369 CMOS temperature insensitive voltage reference  
A temperature insensitive voltage reference is described which can advantageously be implemented using standard CMOS processing techniques. A pair of parasitic bipolar transistors are coupled with...
4675557 CMOS voltage translator  
A voltage translator circuit is provided to reduce a supply voltage to a lower, predetermined, relatively constant and unconditionally stable operating voltage without the use of external...
4675593 Voltage power source circuit with constant voltage output  
A constant power voltage circuit includes a first transistor for generating a collector current, a second transistor for generating a collector current, a third transistor, the collector of which...
4672304 Reference voltage source  
The present invention relates to a reference voltage source in CMOS technology. The reference voltage source is based on the use of two compatible bipolar transistors (T1) and (T2) working at...
4665356 Integrated circuit trimming  
A circuit is described for trimming a monolithic PN junction isolated silicon IC. The value of a moderate value resistance network is translated to a current that can be made to have a...
4656415 Circuit for generating a reference voltage which is independent of temperature and supply voltage  
A circuit for generating a reference voltage which is independent of temperature and supply voltage includes a bandgap stage supplying the reference voltage, a first circuit receiving the supply...
4642551 Current to voltage converter circuit  
A conversion circuit for providing an output voltage that is proportional to an applied current input. The conversion circuit comprises a current mirror which sinks a current at an output the...
4641081 Semiconductor circuit of MOS transistors for generation of reference voltage  
Semiconductor circuit of MOS transistors for generation of the desired reference voltage over a wide range with almost no dependence on the power voltage. An enhancement type MOS transistor and 1st...
4638239 Reference voltage generating circuit  
A reference voltage generating circuit has a control transistor whose collector-emitter path is connected between the output terminal and an input terminal, first and second resistors connected in...
4636710 Stacked bandgap voltage reference  
A pair of ratioed emitter size transistors is operated to produce a ΔV BE . A second pair of transistors is coupled in series with the first pair and matched therewith so as to produce 2ΔV BE ....
4633165 Temperature compensated voltage reference  
A temperature compensated voltage reference circuit in which a compensation current is generated by establishing a current through a passive impedance element which varies with temperature in...
4629972 Temperature insensitive reference voltage circuit  
In an electronic circuit having a reference voltage generator, a device is provided to stabilize the reference voltage against operating temperature variations. Temperature insensitivity is...
4628247 Voltage regulator  
The invention comprises an improved on-chip voltage regulator which provides output voltages significantly lower than the band gap voltage of silicon with supply voltages as low as 1.0 volt, with...
4628248 NPN bandgap voltage generator  
An all NPN bandgap voltage reference is provided that includes a Widlar type temperature coefficient compensation circuit. A pair of NPN differentially connected transistors maintain a constant...
4593338 Constant-voltage power supply circuit  
A control transistor (3) is connected between a power supply terminal (1) and an output terminal (19). The base bias of the control transistor (3) is controlled by bias control transistors (12,...
4588941 Cascode CMOS bandgap reference  
A CMOS bandgap voltage reference which is temperature stable is disclosed. The large temperature-dependent p-tub resistors of prior art arrangements are replaced with relatively small, temperature...
4560919 Constant-voltage circuit insensitive to source change  
A constant-voltage circuit includes a transistor (Q3) for output control connected between a source potential and a ground potential and a divider circuit (R1, R2, D2, D3) which are connected in...
4559488 Integrated precision reference source  
An integrated precision reference source for supplying a reference voltage or a reference current under the condition of a lower feed voltage is disclosed, includes a first transistor, a first...
4553084 Current sensing circuit  
A current sensing circuit is disclosed wherein a small portion of a load current is sampled through a sensing resistor and a substantially larger portion of the load current is allowed to bypass...
4536702 Constant current source or voltage source transistor circuit  
According to this invention, a transistor circuit is disclosed which comprises two main circuit portions connected in parallel between a power supply terminal and a reference voltage terminal. They...
4532467 CMOS Circuits with parameter adapted voltage regulator  
A self-adjusting voltage regulator circuit on a CMOS chip, for use with CMOS digital and/or analog circuit, providing a voltage which is selected in accordance with the characteristics of the chip...
Matches 301 - 350 out of 395 < 1 2 3 4 5 6 7 8 >