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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Hojo; Yoshiyuki
Address:
Kyoto, JP
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
8106634 Switching power supply and portable device January 31, 2012
A switching power supply includes a switching element connected to a power supply voltage and performs ON and OFF operation; a control circuit; a coil; a capacitor connected to the coil and performs a rectifying operation with the coil; an oscillator to output an oscillator signal to
7872459 Semiconductor integrated circuit device and regulator using it January 18, 2011
A semiconductor integrated circuit device (IC1) comprises a semiconductor chip (CHIP1), a first frame lead (FR1), and a second frame lead (FR2). The semiconductor chip (CHIP1) includes common-base transistors (P1, P2), pads (T11, T12) connected to the respective emitters of the common-ba
7652456 Current direction detection circuit and switching regulator having the same January 26, 2010
A current direction detection circuit includes a monitoring transistor having a control terminal and an output terminal respectively connected with a control terminal and an output terminal of a ground side output transistor; an impedance element having one terminal connected with an
7573689 Overcurrent detecting circuit and regulator having the same August 11, 2009
An overcurrent detection circuit that minimizes fluctuations in the overcurrent detection level when the input supply voltage or temperature fluctuates includes a monitor transistor having a control terminal and an output terminal which are connected to a control terminal and an output
7420356 Current direction detection circuit and switching regulator having the same September 2, 2008
A current direction detection circuit includes a monitoring transistor having a control terminal and an output terminal respectively connected with a control terminal and an output terminal of a ground side output transistor; an impedance element having one terminal connected with an
7321222 Switching regulator with DC offset (bias) in controller January 22, 2008
After a current value flowing through a coil L is detected, it is converted into a voltage value, is then inputted to an inverting input terminal of a comparator 4, and is then compared with a voltage indicating the difference between the value of a fed back output voltage and a refe
6525517 Power supply circuit with a soft starting circuit February 25, 2003
A power supply device has a soft starting circuit 12, which is composed of a transistor Tr9 having its emitter connected to the emitter of a transistor Tr1 of which the base serves as a non-inverting input terminal of a comparator 11 and having its collector grounded, a clamp circuit 10
6429745 Semiconductor device August 6, 2002
In conventional cases, when connecting a capacitor having a low equivalent series resistance (ESR) to an output terminal of a semiconductor device as a phase compensation capacitor, an external resistor connected in series therewith is required. A semiconductor device of the present inve
6204646 Power supply device March 20, 2001
A power supply device that feeds electric power to an output terminal that is to be connected to a load has first and second PNP-type transistors having their emitters connected to a supplied power line. The collector of the first transistor is connected to the output terminal, and is co










 
 
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