| 主权项 |
1. A serial advanced technology attachment dual in-line memory module (SATA DIMM) device comprising:
a circuit board; a converting circuit arranged on the circuit board and comprising a voltage input terminal and a voltage output terminal; a plurality of storage chips arranged on the circuit board and connected to the voltage output terminal of the converting circuit, to receive a voltage from the converting circuit; a control chip arranged on the circuit board and connected to the voltage output terminal of the converting circuit, to receive a voltage from the converting circuit, wherein the control chip is connected to the plurality of storage chips for controlling the plurality of storage chips to read or to write data; an extending board extended from a first end of the circuit board and coplanar with the circuit board, wherein a first edge connector is arranged on the extending board and communicates with a storage device port of a motherboard, the first edge connector comprises a plurality of first signal pins connected to the control chip and a plurality of first ground pins grounded; and a second edge connector and a notch arranged on a bottom side of the circuit board, to be inserted into a memory slot of the motherboard, wherein the second edge connector comprises a plurality of second power pins and a plurality of second ground pins, a length of each of the plurality of second ground pins is greater than a length of each of the plurality of second power pins, the plurality of second power pins is connected to the voltage input terminal of the converting circuit, to provide a voltage received from the motherboard to the converting circuit, the plurality of second ground pins is grounded; wherein the converting circuit further comprises first and second capacitors, a first resistor, an electronic switch, and a converting chip, the converting chip stores a preset current value and a preset time value, a timing pin of the converting chip is grounded through the first capacitor, first and second ground pins of the converting chip are grounded, a reset pin of the converting chip is connected to the voltage input terminal and also grounded through the second capacitor, a voltage pin of the converting chip is connected to the voltage input terminal and a first end of the first resistor, a second end of the first resistor is connected to a first terminal of the electronic switch, a first sensing pin of the converting chip is connected to the first end of the first resistor, a second sensing pin of the converting chip is connected to the second end of the first resistor, a second terminal of the electronic switch is connected to the voltage output terminal, a control pin of the converting chip is connected to a control terminal of the electronic switch; when the control terminal of the electronic switch receives a high level signal, the first and second terminals of the electronic switch are connected to each other, when the control terminal of the electronic switch receives a low level signal, the first and second terminals of the electronic switch are disconnected from each other; and wherein when the SATA DIMM device is inserted into the memory slot, the voltage input terminal receives a voltage from the motherboard, the first and second sensing pins of the converting chip measure a current of the first resistor and compares the measured current with the preset current value, when the measured current is less than the preset current value, the control pin of the converting chip outputs a low level signal to the control terminal of the electronic switch, the electronic switch is turned off, the voltage output terminal does not output a voltage; when the measured current is equal to or greater than the preset current value, the converting chip counts time, when the count time reaches the preset time value, the control pin of the converting chip outputs a high level signal to the control terminal of the electronic switch, the electronic switch is turned on, the voltage output terminal outputs a stable voltage to the control chip and the plurality of storage chips, the control chip receives a SATA signal from the motherboard through the first edge connector and controls the plurality of storage chips to read or to write data; when the SATA DIMM device is removed from the memory slot, the voltage input terminal does not receive a voltage from the motherboard, the second capacitor discharges, the first and second sensing pins of the converting chip measure a current of the first resistor and compares the measured current with the preset current value, when the measured current is equal to or greater than the preset current value, the control pin of the converting chip outputs a high level signal to the control terminal of the electronic switch, the electronic switch maintains being turned on, the voltage output terminal outputs a stable voltage to the control chip and the plurality of storage chips, to backup data, when the measured current is less than the preset current value, the converting chip counts time, when the count time reaches the preset time value, the control pin of the converting chip outputs a low level signal to the control terminal of the electronic switch, the electronic switch is turned off, the voltage output terminal does not output a voltage. |
