发明名称 |
Printing consumables chips and containers |
摘要 |
A printing consumables chip comprises a base plate which is provided with a first electrical contact, a second electrical contact, and an electronic module which connects with two electrical contacts. The electronic module comprises a microcontroller, and a clock circuit which provides a clock signal to the microcontroller. The modulation circuit comprises a switch device. A control terminal of the switch device is connected with a first pin of the microcontroller and two output terminals of the switch device are connected with the first electrical contact and the ground, respectively. The clock circuit comprises a comparison unit. A first input terminal of the comparison unit is connected with an external clock signal and a second input terminal. The first pin receives the control signal from the output terminal of the comparison unit, and the control terminal of the switch device is connected with a second pin of the microcontroller. |
申请公布号 |
US8938176(B2) |
申请公布日期 |
2015.01.20 |
申请号 |
US201213976397 |
申请日期 |
2012.01.06 |
申请人 |
Print-Rite Technology Development Co., Ltd. of Zhuhai |
发明人 |
Xie Ligong |
分类号 |
G03G21/14;G03G15/00;B41J2/175;G03G21/18;G03G15/08 |
主分类号 |
G03G21/14 |
代理机构 |
|
代理人 |
O'Connor Cozen |
主权项 |
1. A printing consumables chip, comprising:
a base plate which is provided with a first electrical contact, a second electrical contact, and an electronic module which connects with the first electrical contact and the second electrical contact; wherein the electronic module comprises: a microcontroller; a power circuit which supplies electricity to the microcontroller; a modulation circuit which modulates output signals and comprises a switch device; wherein a control terminal of the switch device is connected with a first pin of the microcontroller and two output terminals of the switch device are connected with the first electrical contact and the ground, respectively; a clock circuit which provides a clock signal to the microcontroller and comprises a comparison unit; wherein a first input terminal of the comparison unit is connected with an external clock signal, a second input terminal of the comparison unit is connected with a reference voltage source, and an output terminal of the comparison unit is connected with the microcontroller; wherein the first pin receives the control signal from the output terminal of the comparison unit, and the control terminal of the switch device is connected with a second pin of the microcontroller; wherein the second electrical contact receives a reference clock signal; and wherein the signal output from the first pin is inverted with the reference clock signal; wherein the clock circuit further comprises a capacitor which is connected in series between the first electrical contact and the first input terminal of the comparison unit; wherein the comparison unit is a voltage comparator; the first input terminal is an inverting input terminal of the voltage comparator; the second input terminal is a non-inverting input terminal of the voltage comparator; and the output terminal of the voltage comparator is connected with an input terminal of an inverter. |
地址 |
Zhuhai, Guangdong CN |