Showing posts with label cell. Show all posts
Showing posts with label cell. Show all posts
Tuesday, December 17, 2013
It is the information of manufacturing cell phone jammers
It is the information of manufacturing cell phone jammers
What is a "soft solution"? The "soft solution" is referred to as "software unlock". What is "unlocked"? Unlock unlock solution is the network operator lock. Why Why do cattle fork phone AT & T sold $ 199? It is because of the lock. Locked a cattle cross the mobile phone, you can only use his phone card, let him make money. Mobile effort can only be inserted mobile card, you can not use other operators network. But some countries the law: "Do not engage in technological monopoly, the consumer is God, he wanted to use the the Han net with Han network, as long as God give money, you have to let him use the card of the other operators." So, "Xie lock "was born. How to unlock the operators of the things of God are paying. The life time of cell phone jammers can be prolonged further.
Such as the Australian version. There is a word called "lock", that is, there is no network lock. For example, the official website of the Order of the Hong Kong version. No lock Well no lock, the price can not stand. Some national laws do not protect the God who spend money, such as the United States. Buy no lock? The next life. So some cattle fork incomparable God began to study, the Team DEV. They do a "software unlock program," This is the famous, extremely cattle fork YellowSn0w by operators can not "unlock" So God save money. The soft solution before there is a love to hate: "SIM" card affixed to the role and the soft solution to achieve a lock version to use third-party operators card. If the customer needs the suggestion about the installation and operation of cell phone jammers .
Or version updates (like XP to Vista). "Recovery" is the format reinstall, "update" is to keep the original program on the basis of an upgrade. Should be "update" is relatively slow, but the "recovery" will result in data loss in case of no backup. Firmware, probably the equivalent of operating systems or functions of the computer more advanced BIOS. The firmware upgrade (to restore or update) and the escape or not, do not conflict. But for a locked version of iPhone is already unlocked, regardless of the jailbreak or not, it should not upgrade the firmware, otherwise it will cause the iPhone is locked, it is equivalent to that before the firmware upgrade will make the unlock failure and can not be used (because cracking method will not be faster than the firmware version update. The manufacturer should purchase the material of cell phone jammers .
Although the hacker is very powerful, but Apples designers Is a vegetarian.) As for the specific conditions of this can not be used, when there are many. Not unlock the lock (only normal use, such as the American people to use AT & T network the iPhone), and lock-free version, the firmware upgrade does not matter, just before escape, the installed non-genuine copy of the App Store in the software may not be able to continue to use (of course some small software you can use, this should and software programming with Apples official detection limit). In addition, the firmware upgrade, it should be is the need to reactivate. But just to say, for a locked version of iPhone has been unlocked.
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What is a "soft solution"? The "soft solution" is referred to as "software unlock". What is "unlocked"? Unlock unlock solution is the network operator lock. Why Why do cattle fork phone AT & T sold $ 199? It is because of the lock. Locked a cattle cross the mobile phone, you can only use his phone card, let him make money. Mobile effort can only be inserted mobile card, you can not use other operators network. But some countries the law: "Do not engage in technological monopoly, the consumer is God, he wanted to use the the Han net with Han network, as long as God give money, you have to let him use the card of the other operators." So, "Xie lock "was born. How to unlock the operators of the things of God are paying. The life time of cell phone jammers can be prolonged further.
Such as the Australian version. There is a word called "lock", that is, there is no network lock. For example, the official website of the Order of the Hong Kong version. No lock Well no lock, the price can not stand. Some national laws do not protect the God who spend money, such as the United States. Buy no lock? The next life. So some cattle fork incomparable God began to study, the Team DEV. They do a "software unlock program," This is the famous, extremely cattle fork YellowSn0w by operators can not "unlock" So God save money. The soft solution before there is a love to hate: "SIM" card affixed to the role and the soft solution to achieve a lock version to use third-party operators card. If the customer needs the suggestion about the installation and operation of cell phone jammers .
Or version updates (like XP to Vista). "Recovery" is the format reinstall, "update" is to keep the original program on the basis of an upgrade. Should be "update" is relatively slow, but the "recovery" will result in data loss in case of no backup. Firmware, probably the equivalent of operating systems or functions of the computer more advanced BIOS. The firmware upgrade (to restore or update) and the escape or not, do not conflict. But for a locked version of iPhone is already unlocked, regardless of the jailbreak or not, it should not upgrade the firmware, otherwise it will cause the iPhone is locked, it is equivalent to that before the firmware upgrade will make the unlock failure and can not be used (because cracking method will not be faster than the firmware version update. The manufacturer should purchase the material of cell phone jammers .
Although the hacker is very powerful, but Apples designers Is a vegetarian.) As for the specific conditions of this can not be used, when there are many. Not unlock the lock (only normal use, such as the American people to use AT & T network the iPhone), and lock-free version, the firmware upgrade does not matter, just before escape, the installed non-genuine copy of the App Store in the software may not be able to continue to use (of course some small software you can use, this should and software programming with Apples official detection limit). In addition, the firmware upgrade, it should be is the need to reactivate. But just to say, for a locked version of iPhone has been unlocked.
Wednesday, September 4, 2013
12V 4 AA Cell Differential Temperature Charger
This project includes a number of improvements over my older Temperature Controlled NICD Charger circuit. This circuit runs on 12VDC, allowing it to be used in a car or from a 12V solar power system. Additionally, a current sensor LED verifies that the cells are receiving charging current. Note that the current sensor circuitry is not shown in the circuit board photo above, it was added to the side of the main board via a small perfboard.
12V, 4-AA Cell Differential Temperature Charger Circuit diagram
The current is adjustable in three steps from 100 to 300mA, allowing fast charging of AA, AAA or other small cells. Battery packs from 1 to 6 cells can be charged with this circuit. NiMH and older NiCD cells are supported. The circuit is protected from reverse input voltage and reversed cells.
Connections:
12VDC power is supplied to the circuit from an external source such as a car battery system, a 12V solar power system or a regulated "wall wart" supply. If DC power is applied backwards, the 6A05 crowbar diode causes the 3A fuse to blow, protecting the circuit from reverse voltage. The power switch routes power to the 78L09 voltage regulator and the battery. The 78L09 regulator provides regulated power to the rest of the circuit.
The battery current loop starts with the +12V supply, then runs through the battery and through a 1N5819 reverse voltage protection diode. Current continues through the LM317 1 amp adjustable voltage regulator which is wired as a constant current source, through the IRFD110 power MOSFET transistor, which switches charging current on and off, through the 0.1 ohm current sensing resistor to ground (12VDC negative). The charge current is selected by jumpering one of three current-set resistors on the negative side of the LM317 regulator. The 120 ohm trickle charge resistor always allows 10mA of current to flow through the battery.
The temperature control part of the circuit starts with a matched pair of 10K NTC thermistors. One thermistor is epoxied to a small metal reference temperature plate. The other thermistor is epoxied to a metal battery holder. The temperature sensors are balanced by the calibrate potentiometer. The 100nF and 50nF capacitors across the thermistors cause different start-up time delays to insure that the following circuitry powers up in the off state.
The upper half of the TLC2272CP rail-to-rail op-amp is wired as a latching comparator when the Cal/Latch jumper is present (operate mode), the circuit becomes a regular comparator with hysteresis when the jumper is off (calibrate mode). Assuming the battery is cold and the circuit is in operate mode, the start switch turns the op-amp on for a charging cycle. When the battery temperature exceeds the reference temperature, the op-amp turns off and the diode in the feedback loop latches the op-amp off. The op-amp output also drives the IRFD110 current switch MOSFET.
The lower half of the TLC2272CP simply inverts the output from the upper part of the op-amp, this gives a bipolar drive signal for running the Red/Green Charging/Done light.
An optional current flow lamp was added to the circuit. Rechargeable batteries tend to get corroded contacts which can prevent the charging current from flowing. The lamp provides an indication that the charging current is really making its way through the batteries. The current Flow lamp circuit consists of an LM358 op-amp wired as a current measurement amplifier that monitors the voltage drop across a 0.1 ohm resistor. The LM358 is specially suited for this type of circuit. The output of the first LM358 stage is further boosted and offset by the second LM358 stage. This produces a digital signal that drives the indicator LED through a current limiting resistor. If you dont want to add the Current Flow circuit, replace the 0.1 ohm resistor with a wire jumper.
Construction:
The circuit was built on a custom home-built circuit board, a hand-wired perf board would also make a good platform for this project. The LM317 regulator is mounted on an aluminum heat sink under the main board, the heat sink should be kept away from the two temperature sensors. The reference temperature sensor is mounted to a small piece of aluminum that is thermally isolated from the battery holder and the rest of the circuitry. All of the sub-components are mounted on a piece of plexiglass or another non conducting material.
Calibration:
Put the circuit in one location and allow the temperature to stabilize for an hour or so. Remove the Cal/[Latch] jumper. Adjust the 20 turn Calibrate trimmer a little bit past the point where the Charge/Done light turns red. Put the Cal/[Latch] jumper back.
Use:
The charger should only be used in a cool location with a fairly constant temperature. Install the batteries to charge in the battery holder, start with the negative side of the socket and connect the alligator clip to the + side of the last cell. Put a piece of insulating foam over the battery holder to keep the warmth in the battery. If the battery is already hot, allow it to cool down before starting the charge cycle. The Charging/Done light should now be green.
Push the Start switch and the Charging/Done light should turn red. The Current Flow light should turn on, if it doesnt, try reseating the cells in the holder. After some amount of charging, the battery will warm up, the Charging/Done light will turn green and the battery charge cycle be finished. If you want to equalize the weaker cells in the battery, allow the pack to cool down then run another charging cycle, the second time should not take very long.
12V, 4-AA Cell Differential Temperature Charger Circuit diagram
The current is adjustable in three steps from 100 to 300mA, allowing fast charging of AA, AAA or other small cells. Battery packs from 1 to 6 cells can be charged with this circuit. NiMH and older NiCD cells are supported. The circuit is protected from reverse input voltage and reversed cells.
Connections:
- 12VDC (nominal) power input
- Connections for the Battery Under Charge
- Power On/Off switch
- Charge Start switch
- 3 step Charge Current Select jumper
- Calibrate/[Latch] mode jumper
- Temperature sensor calibrate trimmer
- Red/Green Charging/Done light
- Amber Current Flow light
12VDC power is supplied to the circuit from an external source such as a car battery system, a 12V solar power system or a regulated "wall wart" supply. If DC power is applied backwards, the 6A05 crowbar diode causes the 3A fuse to blow, protecting the circuit from reverse voltage. The power switch routes power to the 78L09 voltage regulator and the battery. The 78L09 regulator provides regulated power to the rest of the circuit.
The battery current loop starts with the +12V supply, then runs through the battery and through a 1N5819 reverse voltage protection diode. Current continues through the LM317 1 amp adjustable voltage regulator which is wired as a constant current source, through the IRFD110 power MOSFET transistor, which switches charging current on and off, through the 0.1 ohm current sensing resistor to ground (12VDC negative). The charge current is selected by jumpering one of three current-set resistors on the negative side of the LM317 regulator. The 120 ohm trickle charge resistor always allows 10mA of current to flow through the battery.
The temperature control part of the circuit starts with a matched pair of 10K NTC thermistors. One thermistor is epoxied to a small metal reference temperature plate. The other thermistor is epoxied to a metal battery holder. The temperature sensors are balanced by the calibrate potentiometer. The 100nF and 50nF capacitors across the thermistors cause different start-up time delays to insure that the following circuitry powers up in the off state.
The upper half of the TLC2272CP rail-to-rail op-amp is wired as a latching comparator when the Cal/Latch jumper is present (operate mode), the circuit becomes a regular comparator with hysteresis when the jumper is off (calibrate mode). Assuming the battery is cold and the circuit is in operate mode, the start switch turns the op-amp on for a charging cycle. When the battery temperature exceeds the reference temperature, the op-amp turns off and the diode in the feedback loop latches the op-amp off. The op-amp output also drives the IRFD110 current switch MOSFET.
The lower half of the TLC2272CP simply inverts the output from the upper part of the op-amp, this gives a bipolar drive signal for running the Red/Green Charging/Done light.
An optional current flow lamp was added to the circuit. Rechargeable batteries tend to get corroded contacts which can prevent the charging current from flowing. The lamp provides an indication that the charging current is really making its way through the batteries. The current Flow lamp circuit consists of an LM358 op-amp wired as a current measurement amplifier that monitors the voltage drop across a 0.1 ohm resistor. The LM358 is specially suited for this type of circuit. The output of the first LM358 stage is further boosted and offset by the second LM358 stage. This produces a digital signal that drives the indicator LED through a current limiting resistor. If you dont want to add the Current Flow circuit, replace the 0.1 ohm resistor with a wire jumper.
Construction:
The circuit was built on a custom home-built circuit board, a hand-wired perf board would also make a good platform for this project. The LM317 regulator is mounted on an aluminum heat sink under the main board, the heat sink should be kept away from the two temperature sensors. The reference temperature sensor is mounted to a small piece of aluminum that is thermally isolated from the battery holder and the rest of the circuitry. All of the sub-components are mounted on a piece of plexiglass or another non conducting material.
Calibration:
Put the circuit in one location and allow the temperature to stabilize for an hour or so. Remove the Cal/[Latch] jumper. Adjust the 20 turn Calibrate trimmer a little bit past the point where the Charge/Done light turns red. Put the Cal/[Latch] jumper back.
Use:
The charger should only be used in a cool location with a fairly constant temperature. Install the batteries to charge in the battery holder, start with the negative side of the socket and connect the alligator clip to the + side of the last cell. Put a piece of insulating foam over the battery holder to keep the warmth in the battery. If the battery is already hot, allow it to cool down before starting the charge cycle. The Charging/Done light should now be green.
Push the Start switch and the Charging/Done light should turn red. The Current Flow light should turn on, if it doesnt, try reseating the cells in the holder. After some amount of charging, the battery will warm up, the Charging/Done light will turn green and the battery charge cycle be finished. If you want to equalize the weaker cells in the battery, allow the pack to cool down then run another charging cycle, the second time should not take very long.
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