Driver circuit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9742388
SERIAL NO

15127979

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A driver circuit includes normally-on transistors (Q1, Q2), control circuits (1, 2) that control the transistors (Q1, Q2), a capacitor (4) connected between power source nodes (1c, 1d) of the control circuit (1), a power source (7) connected between power source nodes (2c, 2d) of the control circuit (2), a MOSFET (16) connected between the power source nodes (1d, 2d), a control circuit (3) that turns on the MOSFET (16) when an output voltage VO reaches approximately 0 V, and a startup circuit that includes a Zener diode (20) connected in parallel to the capacitor (4) and that can charge the capacitor (4) with a Zener voltage even when the MOSFET (16) is off.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ROHM CO LTD21 SAIIN MIZOSAKI-CHO UKYO-KU KYOTO-SHI KYOTO 615-8585

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kihara, Seiichiro Sakai, JP 18 139

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 22, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 22, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00