Power supply circuit an operational amplifier generates a power supply potential from a reference potential. An impedance adjuster adjusts an output impedance of the operational amplifier in accordance with a...
2
200610155167
AC voltage stabilizer Especially, the invention is related to a voltage stabilizer. Sampling circuit of the stabilizer rectifies and divides the voltage fed back, and sends the processed voltage to operational...
3
200610153133
Reference voltage generating circuit Disclosed is a reference voltage generating circuit which includes resistors R 0 , R 0 and R 3 , a differential amplifier A 1 and transistors Q 1 , Q 2 and Q 3 . The collectors of the tra...
4
200610164198
Switching regulator Provided is a switching regulator having an improved power supply voltage variation response characteristic while maintaining the stability of an output voltage to oscillation. An output ...
5
200610163792
Semiconductor integrated circuit A semiconductor integrated circuit is provided with a signal processing circuit which operates based on a first reference voltage and processes a voice signal, an output amplifier which a...
6
200610148592
Semiconductor integrated circuit device A semiconductor integrated circuit device includes a voltage control circuit that generates a control voltage for deactivating a field effect transistor by a gate voltage. The voltage con...
7
200610146518
Bandgap reference circuits Bandgap reference circuits. In the bandgap reference circuit, a current generation circuit generates an output current obtained by combining a first current, a second current and a third ...
8
200610171854
Constant-voltage circuit and controlling method thereof A constant-voltage circuit in which a response speed for a sudden change of an input voltage or a sudden change of a load current can be fast are disclosed. In normal operating conditions...
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 ...
Power-less compensation control method The control method uses voltage as first controlled variable, current as second controlled variable, power factor as third controlled variable, reactive current as fourth controlled varia...
Accurate pure AC voltage/current convertor with low noise A pure AC voltage-current inverter of precise low noise type is prepared as carrying out stopping treatment on input voltage by stopping circuit then coupling said voltage to positive and...
15
200610143234
Regulator circuit A regulator circuit is offered to resolve a problem that an unnecessary operating current flows in a semiconductor integrated circuit in a low power consumption state. Channel width to ch...
Double buck/boost two-way AC chopper The invention relates to a buck/boost bidirectional alterative-current chopper, which comprises power circuit formed by capacitor with one end connected to ground and one parallel alterat...
19
200610096871
Two-way AC chopper The invention relates to a bidirectional alternative-current chopper, which comprises the first and second buck (boost) circuit, wherein in the first buck(boost) circuit, the cathode of f...
20
200610069527
Head carried night view system The night vision system is composed of headpiece, video camera and control circuit. The camera is fixed on up part of the headpiece. Infrared transmitting device is setup in front part of...
21
200610069463
Vehicle carried night-vision system The invention discloses a vehicle night vision system, which is composed of a shell, supporting frame, image acquisition device, monitor and controller. There is an infrared launching dev...
22
200610141187
Energy feedback power unit The invention is an energy feedback power unit used in series power unit-type high voltage inverter and implementing four-quadrant operating ability, and its control circuit comprises: fi...
Electricity saving device of full automatic three-phase motor It consists of the power factor generation circuit (PFG), the signal amplification circuit (SA), the trigger circuit (TR) and the bridge rectification circuit group (BRG). The input end o...
Method and apparatus to improve regulation of a power supply Techniques are disclosed to regulate a power supply with a compensation signal generation circuit. On example regulated power supply includes a sense circuit coupled to sense an output vo...
34
200610153589
Control circuit for electric tool two-purpose power supply The control circuit consists an inverter with a controllable input end (CIE) and a light coupler (IC1). The 2nd winding (L) of the inverter is connected to a rectification/filter (RF) cir...
Power source apparatus The object of the present invention is to provide a power source device which can eliminate the limit of power source ultraharmonics without increasing reactor inductance in the field of ...
39
200610112318
High voltage electric-saver This invention discloses one high voltage energy saving device, which comprises the following parts: main loop electricity resistance coil into high voltage circuit; voltage to change mai...
40
200610151701
Semiconductor device There is provided a semiconductor device supplied with internal power generated by an internal power generation circuit to perform a stable operation and, also, suppress power consumption...
41
200610121891
Constant current circuit In CMOS processing, there may be a case in which a resistance element, such as a poly-silicon resistance, or the like, may be formed which has negative temperature characteristics, that i...
Automatic voltage controller An automatic voltage controller utilizes monolithic computer or SOC integrated chip to carry out calculation on detected signal and then carries out compensation regulating treatment on p...
Step-up device A booster unit is prepared as connecting reference voltage circuit to PWM pulse for converting PWM pulse to be reference voltage required by host board, forming booster circuit by stoppin...
46
200610115936
Electronic apparatus and control method of the driving voltage An electronic apparatus and method of controlling the electronic apparatus are provided, in which a power supply supplies a driving voltage to a system; and a controller sequentially outp...
47
200610109832
Method and device for system efficiency adjustment The presented device to adjust electric system efficiency comprises: a system current detector to receive system current value and calculate current variable rate, and efficiency-adjust m...
48
200610109582
Bandgap reference circuit A bandgap circuit includes a current mirror that generates a proportional to absolute temperature current at an output node that outputs the bandgap reference voltage. A first current pat...
49
200610110758
Output voltage adjustable dc-dc conversion circuit The invention relates to a direct-current-direct-current convert circuit, which comprises: one direct-current power source, one direct-current-direct-current converter, one power manage c...
50
200610040952
Contactless AC power voltage stabilizer The disclosed new no-touch ac power stabilizer comprises: two filters (1, 3) every included an inductor and a capacitor, a chopper (2) with a PWM and power tube, and a compensation transf...
AC to DC voltage stabilizer The high-efficient voltage stabilizer comprises: a input electric crystal coupled with a voltage source, an detection circuit coupled with voltage source and the supply power to generate ...
53
200610109717
AC/DC power circuit The related high-efficient power circuit comprises: an input electric crystal with negative critical value coupled with a voltage source to supply power to the output end of power circuit...
54
200610109716
Voltage stabilizer for energy supply from AC power source The high-efficient voltage stabilizer comprises: a switch coupled with a voltage source, an input detection circuit coupled with voltage source to stop the switch when the voltage over th...
Semiconductor integrated circuit apparatus Semiconductor integrated circuit apparatus capable of raising detection sensitivity of a leakage current detection circuit and improving response. A semiconductor integrated circuit appar...
Method for raising constant-current source circuit performance The invention provides a method to improve the constant-current source circuit performance. The subtraction device is set between the reference supply and the operational amplifier. The r...
59
200610126387
Charge pump apparatus, system and method Apparatus, system, and method including a single common node bias voltage; at least a first current path to drive a bias current based on the single common node bias voltage; at least a f...
60
200610088387
Voltage reference circuit of pulse width modulation This invention discloses a voltage primary circuit for a pulse width modulator including a soft start-up circuit, a band-gap primary circuit and a small current charge circuit, in which, ...
61
200610098878
Automatic correcting current circuit and method The invention provides an automatic current calibrating circuit and the method. The circuit includes the circuit which generates the non-calibrating current, the circuit which generates t...
62
200610105520
Constant current circuit A constant current circuit that generates a constant output current corresponding to an input voltage, comprises a differential amplifying unit to which the input voltage and a feedback v...
Current regulator and method therefor In one embodiment, a current regulator is configured to form a first signal representative of a current flow through a power switch and to use the first signal to determine an off-time of...
65
200610061463
Feedback circuit adapted for series resonance dc-dc converter The invention relates to a feedback circuit used in serial resonance direct-current-direct-current converter and a relative device, wherein said circuit comprises: two voltage adjusters a...
66
200610095963
Power supply device for electrocladding The invention provides a power supply device for electrocladding comprising: an input rectifying circuit connected to an input terminal for bridge grafting rectifying memebers and a first...
Intelligent type power supply and its method
The related intelligent power supplier for detectable electronic product can be selected by different joint connector for variable electronic products, and detects the required voltage i...
Switching control circuit and self-excited dc-dc converter
A self-excited DC-DC converter comprises a switching element that chops a direct-current input voltage; a smoothing circuit that smoothes the chopped voltage to generate a DC output volt...
71
200610036065
Actuator power-supply for driving laser diode A switch power for driving laser light emitting diode, including: the adjusting operating current multi-circle potentiometer and the operating current amplifier that connect with each oth...
72
200610061264
Control of phase whole-bridging circuit and its control circuit A controlling method and controlling circuit for the phase-shifting entire bridge circuit, the method includes: step 101, loading determinant circuit compares and reflects the loading deg...
Control circuit of synchronization switching power converter
The disclosed synchro switching control circuit in use for switching power converter with changeable frequencies includes following parts: a first circuit in use for generating a first s...
Direct-current stabilized power supply device
In a direct-current stabilized power supply device provided with an output transistor that receives an input voltage from the outside and a control circuit that controls the output trans...
Apparatus for supplying power source
The present invention relates to an apparatus for supplying power source for providing power source to a plurality of display devices. The apparatus for supplying power source includes a...
82
200610081280
Method of current management in a battery powered audio device
The invention relates to a method of current management in a battery powered audio device. According to the invention the method comprises the following steps: a-comparing the actual sup...
Stabilized DC power supply circuit
A stabilized DC power supply circuit of the present invention includes an output current limiting circuit for limiting an output current of an output transistor, and a correction circuit...
89
200520015705
Automatic reactive compensated controller The utility model relates to an automatic reactive compensated controller. It is composed of a voltage sampler, a zero passage comparator, a phase difference distinguishing measuring inst...
90
200610046555
Multi-path digital-control constant-flow source
The present invention relates to multiplepath constant current source consisting of monolithic computer, peripheral circuit and monolithic computer software program. Said Monolithic comp...
Power factor auto-adjusting device The present invention provided a power factor automatic reulator apparatus, which may shut off the power factor adjust capacitor without manual operation in case of assuming that the appa...
Power overload detection method and structure therefor In one embodiment, the bulk input voltage is used to form a reference signal that is used for controlling a switching power supply system to operate in a power overload operating mode.
96
200610040061
High-power high-precision switch linear combined manostat
The invention discloses a high power high accuracy switching linear compound potentiostat, which comprises the following parts: one output voltage reference forming unit and one power co...
97
200610077667
Regulator
A regulator of the present invention includes a leadframe having a terminal portion for current supply, an IC chip having a pad for current supply, and a wire for current supply that ele...
Secondary side controller and method therefor
In one embodiment, a secondary side power supply controller is configured to enable a secondary side power switch independently of a state of a drive signal used to control a primary sid...
