H03F 17 - Amplifiers using electroluminescent element or photocell

Patents for H03F 17 - Amplifiers using electroluminescent element or photocell (53)
05/2014
05/06/2014	US8717098 High gain, high voltage power amplifier
05/2011
05/04/2011	CN101447769B Photodiode amplifier
02/2011
02/15/2011	US7888577 Instrument amplification system
10/2010
10/27/2010	CN101088215B Noise filter
09/2010
09/21/2010	US7800439 High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom
09/14/2010	US7795965 Cryogenic receiving amplifier and amplifying method
03/2010
03/17/2010	CN101674058A Photocoupled passive amplifier
12/2009
12/17/2009	US20090309510 Led driver circuit capable of adjusting output current
09/2009
09/30/2009	CN201319584Y Photo diode amplifier
06/2009
06/10/2009	EP1833165B1 Noise filter
06/03/2009	CN101447769A Photodiode amplifier
12/2008
12/18/2008	US20080308713 Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor
12/11/2008	US20080304060 Microstructures, method for producing microstructures, and optical field amplifying device
01/2008
01/08/2008	US7317350 Transresistance amplifier for a charged particle detector
12/2007
12/12/2007	CN101088215A Noise filter
09/2007
09/12/2007	EP1833165A1 Noise filter
08/2007
08/01/2007	CN1329898C Current-voltage transforming circuit employing limiter circuit
07/2006
07/06/2006	WO2006070722A1 Noise filter
06/2006
06/27/2006	US7068951 Optical signal receiver with RPM, data and data bar output
06/06/2006	US7057423 Current-voltage transforming circuit employing limiter circuit
02/2006
02/15/2006	CN1734931A Wireless sound box
12/2005
12/01/2005	US20050264351 Transresistance amplifier for a charged particle detector
05/2005
05/17/2005	US6895096 Microchannel plate audio amplifier
04/2005
04/07/2005	DE10346972A1 Eine Begrenzerschaltung verwendende Strom-Spannungs-Umwandlungsschaltung A limiter circuit used current-voltage conversion circuit
03/2005
03/09/2005	CN1591618A Current-voltage transforming circuit employing limiter circuit
03/03/2005	US20050046448 Current-voltage transforming circuit employing limiter circuit
03/02/2005	EP1510002A1 Transresistance amplifier for a charged particle detector
01/2005
01/18/2005	US6844779 Optically isolated bias control circuit
12/2004
12/23/2004	US20040257155 Optically isolated bias control circuit
12/2003
12/11/2003	WO2003103138A1 Transresistance amplifier for a charged particle detector
08/1998
08/04/1998	US5790721 Low-noise fiber-optic amplifier utilizing polarization adjustment
08/1994
08/23/1994	US5341086 Constant-current circuit for light-emitting element
11/1992
11/04/1992	EP0331695B1 Read-out amplifier for photovoltaic detector
04/1992
04/29/1992	EP0482520A1 Constant-current circuit for light-emitting element
03/1992
03/21/1992	CA2025817A1 Switched wide dynamic range
09/1990
09/12/1990	CN1009603B Photoelectric reading amplifier
04/1990
04/03/1990	US4914402 Opto-electronic transimpedance amplifier
09/1989
09/26/1989	US4870369 Circuit arrangement having a pre-amplifier connected to an opto-electric transducer
09/13/1989	EP0331695A1 Read-out amplifier for photovoltaic detector
05/1989
05/03/1989	EP0313914A1 Circuit comprising an input amplifier connected to an opto-electrical transducer
03/1989
03/23/1989	WO1989002674A1 Read-out amplifier for photovoltaic detector
12/1988
12/27/1988	US4794247 Read-out amplifier for photovoltaic detector
12/07/1988	CN87103662A Photoelectric reading amplifier
12/1987
12/30/1987	CN87209231U Pulse width-modulation & photoelectric coupled analogue signal isolator
02/1987
02/10/1987	US4642453 Apparatus for increasing the dynamic range in an integrating optoelectric receiver
10/1985
10/24/1985	WO1985004773A1 Apparatus for increasing the dynamic range in an integrating optoelectric receiver
05/1985
05/21/1985	US4518924 High voltage amplifier
07/1980
07/15/1980	US4213099 Hydrophone preamplifier and calibration circuit
02/1980
02/19/1980	US4189680 Isolated signal conditioner
09/1978
09/19/1978	CA1038939A1 Stabilization circuit for radiation emitting diodes
05/1978
05/16/1978	US4090146 Clipping indicator circuit for transistor amplifier
04/1976
04/27/1976	US3953806 Displaying amplifier output amplitude
03/1976
03/23/1976	US3946335 Stabilization circuit for radiation emitting diodes