| US 7,567,225 B2 | ||
| Plasma display panel driving device having a zener diode | ||
| Seung-Hun Chae, Suwon-si (Korea, Republic of); Woo-Joon Chung, Suwon-si (Korea, Republic of); Jin-Sung Kim, Suwon-si (Korea, Republic of); Kyoung-Ho Kang, Suwon-si (Korea, Republic of); and Tae-Seong Kim, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung SDI Co., Ltd., Suwon (Korea, Republic of) | ||
| Filed on Oct. 15, 2004, as Appl. No. 10/965,046. | ||
| Claims priority of application No. 10-2003-0072323 (KR), filed on Oct. 16, 2003. | ||
| Prior Publication US 2005/0083262 A1, Apr. 21, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G09G 3/28 (2006.01) | ||
| U.S. Cl. 345—60 [345/69] | 5 Claims |
| 1. A plasma display panel driver for applying a reset driving waveform in a ramp pulse format to a panel capacitor, comprising:
a transistor having a drain electrode coupled to a first terminal of the panel capacitor and a source electrode coupled to
a power source;
a capacitor having a first terminal coupled to a gate electrode of the transistor;
a Zener diode having an anode coupled to a second terminal of the capacitor; and
a first resistor and a diode coupled between a cathode of the Zener diode and the drain electrode of the transistor, wherein
the first resistor and the diode are coupled in parallel to each other.
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