Apparatus for generating driving signal
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsYong Il KWON, Moon Suk JEONG, Tah Joon PARK
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Abstract
There is provided an apparatus for generating a driving signal, the apparatus including: a first driving signal generation circuit generating a first driving signal; a second driving signal generation circuit generating a second driving signal, the second driving signal generation circuit including at least two transistors and a pulse generation unit; and a control unit controlling the first and second driving signal generation circuits so that they generate the first and second driving signals selectively.
Claims10
An apparatus for generating a driving signal, the apparatus comprising:
- a first driving signal generation circuit generating a first driving signal;
- a second driving signal generation circuit generating a second driving signal, the second driving signal generation circuit including at least two transistors and a pulse generation unit;
- and
- a control unit controlling the first and second driving signal generation circuits so that they generate the first and second driving signals selectively, wherein:
- the first and second driving signal generation circuits have a common output terminal, a maximum voltage level of the first driving signal is higher than a withstand voltages of the at least two transistors;
- one transistor among the at least two transistors is connected between the other transistor and the output terminal, a constant voltage equal to the withstand voltage is applied to the gate of the one transistor;
- and
- the control unit, when controlling the first driving signal generation circuit to generate the first driving signal, turns the other transistor off.
An apparatus for generating a driving signal, the apparatus comprising:
- a first driving signal generation circuit generating a first driving signal;
- a second driving signal generation circuit generating a second driving signal, the second driving signal generation circuit including at least two transistors and a pulse generation unit;
- and
- a control unit controlling the first and second signal generation circuits so that they generate the first and second driving signals selectively, wherein:
- the first and second driving signal generation circuits have a common output terminal, a maximum voltage level of the first driving signal is higher than a withstand voltages of the at least two transistors;
- one transistor among the at least two transistors has a drain thereof connected to the output terminal, a gate thereof to which a constant voltage equal to the withstand voltage is applied and a source thereof connected to the drain of the other transistor;
- and
- the control unit, when controlling the first driving signal generation circuit to generate the first driving signal, has the source of the other transistor to be floated.
Dependencies are inferred from the claim text.