Patents
Patents for H03K 4 - Generating pulses having essentially a finite slope or stepped portions (2,412)
06/2000
06/21/2000DE19938054A1 Current comparison device; has load circuit to deliver reference current and driver device to generate voltage determined by control of input and reference currents
06/15/2000WO2000035090A1 Multilevel current generator with digital control and system for testing the endurance of a component equipped with same
06/13/2000CA2229071C Appliance ac power control apparatus
06/06/2000US6072534 Device for the subdivision of the period of a signal into N quasi-equal parts
05/2000
05/10/2000CN1052367C Device for protecting vertical deflection integrated circuit for monitor
04/2000
04/13/2000DE19944911A1 Waveform generator for producing arbitrary waveforms used in testing semiconductor devices uses an input terminal coupled to a delay unit, a processor and a composition unit
03/2000
03/23/2000DE19841719A1 Schaltungsanordnung zur Flankensteilheitsformung Circuit arrangement for slope forming
03/21/2000US6040724 Bus driver circuit having adjustable rise and fall times
03/15/2000EP0986173A1 Circuit device to control the steepness of an edge
02/2000
02/29/2000CA2175941C Digital-to-analog converter (dac) and method that produce an approximately piecewise linear analog waveform
01/2000
01/26/2000CN1048835C Analog type step wave generator
01/13/2000WO1999053609A3 Coupled sawtooth oscillator
12/1999
12/16/1999WO1999065144A1 Gate drive for insulated gate power semiconductors
12/16/1999CA2335124A1 Gate drive for insulated gate power semiconductors
11/1999
11/30/1999US5995416 Method and circuit for the generation of programming and erasure voltage in a non-volatile memory
11/30/1999US5995089 Device for protecting a vertical deflection integrated circuit for a monitor
11/24/1999EP0959561A1 Slope generator
11/17/1999CN1235409A Piezoelectric driving circuit
11/09/1999US5982115 Circuit arrangement for producing a vertical frequency deflection current
10/1999
10/26/1999US5973522 Current injected ramp with reduced recovery time background of the invention
10/21/1999WO1999053616A1 Monopulse generator
10/21/1999WO1999053609A2 Coupled sawtooth oscillator
10/14/1999WO1999052212A1 Method and device for controlling an insulated grid power transistor switching
10/05/1999US5962994 Horizontal deflection output circuit for high-frequency horizontal scanning
09/1999
09/29/1999EP0944958A1 High voltage ramp generator
09/14/1999US5952949 Timer with dynamic reset threshold
09/07/1999US5949666 Staircase adaptive voltage generator circuit
08/1999
08/17/1999US5939909 Driver circuit having preslewing circuitry for improved slew rate control
08/10/1999US5935236 Microcomputer capable of outputting pulses
07/1999
07/27/1999US5929671 Waveform generator
07/27/1999US5929635 Digital oscillator and supply circuit for an eddy current probe
07/13/1999US5923387 Picture display apparatus and method of generating a focusing voltage
06/1999
06/29/1999US5917313 DC-to-DC converter with soft-start error amplifier and associated method
06/22/1999US5914621 Charge balanced ramp with improved signal linearity
04/1999
04/14/1999EP0908012A1 Relaxation oscillator of reduced complexity using cmos equivalent of a four-layer diode
04/14/1999CN1213930A Horizontal scanning pulse signal control circuit using digital circuit
04/06/1999US5892671 Control circuit for a switching transistor using a tapped coil with oppositely wound coil parts
03/1999
03/30/1999US5889720 Circuit for the production of a programming high voltage
03/24/1999EP0903750A1 Method and circuit for generating programming and erasing voltage in nonvolatile memory
02/1999
02/16/1999US5872807 Spread spectrum clock generator and associated method
02/16/1999US5872474 Waveform shaping circuit
02/11/1999DE19803216A1 Microcomputer for output of pulses
02/03/1999EP0843913A4 Appliance ac power control apparatus
02/02/1999US5867524 Spread spectrum clock generator and associated method
12/1998
12/10/1998DE19733378A1 Saw tooth voltage generator
12/02/1998EP0881770A1 Control circuit for the current switch edges of a power transistor
11/1998
11/17/1998US5838956 Clock generating circuit
10/1998
10/20/1998US5825223 Technique for controlling the slope of a periodic waveform
10/20/1998US5825218 Driver circuit including slew rate control system with improved voltage ramp generator
10/14/1998EP0870397A1 Over-current protection circuit in line deflection circuits
09/1998
09/29/1998US5815537 Wireless digital communication device, and a pulse shaping network
09/29/1998US5814952 Device for correcting the ramp linearity of saw-tooth signals
09/08/1998US5804999 Appliance AC power control apparatus
09/02/1998EP0862270A1 Staircase adaptive voltage generator circuit
09/01/1998US5801560 System for determining time between events using a voltage ramp generator
08/1998
08/11/1998US5793257 Oscillator having switching capacitors and phase-locked loop employing same
08/05/1998CN2287353Y High voltage and high speed power pulse generator
07/1998
07/21/1998CA2073392C Parabolic signal generator
06/1998
06/30/1998US5774390 Digital ramp generator
06/23/1998US5770930 Vertical deflecting circuit using a raised source voltage
06/18/1998WO1998026505A1 High voltage ramp generator
06/18/1998CA2274856A1 High voltage ramp generator
06/10/1998EP0847141A1 Apparatus for dividing a signal period into N quasi-equal shares
06/10/1998EP0846392A1 Generating a focusing voltage
06/09/1998US5764002 Over-current protection circuit for use in television horizontal deflection circuits
06/02/1998US5760623 Ramp voltage generator for differential switching amplifiers
05/1998
05/27/1998EP0843913A1 Appliance ac power control apparatus
05/19/1998US5754015 Horizontal deflection circuit for multiscan type display devices
04/1998
04/21/1998US5742193 Driver circuit including preslewing circuit for improved slew rate control
04/14/1998US5739711 Regulation circuit for bipolar voltage switching circuits having logic circuitry using a single error amplifier for regulation of both positive and negative voltages
04/08/1998EP0834103A1 Digital oscillator and power supply circuit for an eddy current probe
04/08/1998EP0574379B1 Coupled regenerative oscillator circuit
03/1998
03/04/1998CN1175113A Control circuit for cyclic exciting switching transistor
03/03/1998US5723993 Pulse generating circuit for use in a semiconductor memory device
02/1998
02/17/1998US5719906 Signal generator and wireless mobile system including the same
02/03/1998US5714897 Phase-shifted triangle wave generator
01/1998
01/28/1998EP0821520A2 Waveform generator
01/14/1998CN1170303A Oscillator and phase-locked loop employing same
01/08/1998WO1998000967A1 Over-current protection circuit in line deflection circuits
01/07/1998CN1169800A Wireless digital communication device, and pulse shaping network
12/1997
12/31/1997WO1997050244A1 Generating a focusing voltage
12/31/1997WO1997050175A1 Relaxation oscillator of reduced complexity using cmos equivalent of a four-layer diode
12/31/1997CN1169063A Deflection circuit responsive to differential sawtooth signals
12/30/1997US5703445 Video display apparatus
12/24/1997CN1168594A Sawtooth generator with disturbance signal rejection for deflection apparatus
12/10/1997EP0811987A1 Circuit to produce high programming voltage
11/1997
11/12/1997EP0806084A1 Circuit for switching the actuator outputs off in an asi system in the event of data communication failure
11/12/1997CN1164790A Vertical deflecting circuit
10/1997
10/16/1997DE19614094A1 Vacuum cleaner with circuit generating ultrasonic oscillations
10/01/1997EP0798855A2 A sawtooth generator with disturbance signal rejection for a deflection apparatus
09/1997
09/30/1997US5673164 Transistor protection circuit of a monitor
09/24/1997CN1035976C Slow turn-on in deflection circuit
09/16/1997US5668508 Oscillator circuit having oscillation frequency independent from the supply voltage value
09/02/1997US5663728 Digital-to-analog converted (DAC) and method that set waveform rise and fall times to produce an analog waveform that approximates a piecewise linear waveform to reduce spectral distortion
08/1997
08/13/1997EP0789485A2 Vertical deflecting circuit
08/13/1997CN2259720Y High-voltage energy-saving pulse generator
08/05/1997US5654677 Relaxation oscillator of reduced complexity using CMOS equivalent of a four-layer diode
07/1997
07/30/1997EP0786866A1 Driving circuit for a periodically operated switch transistor
07/24/1997DE19601569A1 Signal delay circuit arrangement
07/23/1997EP0785703A1 Control device for a low pressure fluorescent lamp
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