TWM405680U - Power control circuit, power control power control apparatus and portable electronic device having the same - Google Patents

Abstract

A power control circuit suitable for a portable electronic device is provided, wherein the circuit includes a flip-flop, a first circuit and second circuit. The flip-flop has an input terminal coupled to a standby voltage source, an output terminal coupled to a power supply unit, and a clock terminal coupled to a power switch. The first circuit is coupled between a clock terminal of the flip-flop and a processing unit for outputting an interrupting signal to the processing unit when the power switch is triggered. The second circuit is coupled to a reset terminal of the flip-flop and the processing unit for triggering the reset terminal according to the power-off signal outputted from the processing unit, so that the flip-flop resets the output terminal to turn off the power supply unit, wherein the power-off signal is generated by the processing unit after completing a power-off procedure.

Description

V. New description: [New technical field] A suitable source control circuit' and especially related to the power control circuit and device of the electronic device. [Prior Art] The device is a holding device. For example, the new year's device, or the MP3 player, etc. In today's, portable electronic: 疋 quite popular 'Almost everyone has a mobile phone or MP3. The second 3 is a milliampere (mA) level, But still consume the battery 'a) level 彳曰 ^ This can reduce the power consumption during standby to micro-ampere (# ” find 'q the current hand (four) Lai design, _ single crystal = electricity = far away directly cut off the power supply It will be a very dangerous i. Lost. This piece of damage or the operation of its data. Stomach. Cheng Zuo picked mussels (4) 4/17 affecting portable electronic devices [New content] This creation provides a power supply Control circuit, sub-device. In the state of shutdown, the user; J and the portable electric device with the same; in the state of use, the user's switch can normally initiate a circuit to send a towel signal, After the notice is turned off, the power control ' The management unit will start to enter the shutdown program. ^ The user wants to shut down. Then the source control circuit turns off the power, and then = after completing the shutdown procedure, the power failure and the power supply during standby are reduced n =, 'first due to sudden cut off' When the power supply is not used, the power of the device is turned off by itself, and = when the user uses a certain section of the power supply control circuit. = Power supply, the portable device is good: Dibu Portable electronic and power supply material, the power control device ^1 early yuan a power switch and - the second circuit. The positive and negative boundaries are right one inclusive, a positive and negative device, a first circuit - set end and a weight Set the end, the end of the wheel, the end of the wheel, the end of the clock, the end of the power supply = = standby voltage source, the output circuit is switched to the clock terminal and the processing single = the electrical off The first - the reset terminal and the processing unit. The first, the issued - shutdown letter - send the reset = use = according to the processing unit to turn off the power supply unit: the second inverter resets the output The end generates the shutdown signal. Qian Lizao 70 after the completion-shutdown procedure, the above = control circuit further includes - - between the electrical standby voltage source; the first resistor is coupled between the set terminal and the third; the third electrical connection: between (4) and (4) and the input end between the present reset terminal and the standby voltage source. In κ q, the first circuit includes a fourth resistor, a 5/17 Μ4Θ5680-diode, a fifth resistor, and a first-end of the processing of the celestial element. The second pole is lightly connected to the pure At the first end of the electricity, the cathode (4) of the diode is between the standby power and the clock terminal of the 4 processing unit. The second: the second power is connected between the ground terminals.垓 脉 脉 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端 端Seventh two two ==, electro-crystal __ two: end, said N in the flip-flop of the reset The reset end and the ^ (four) pole connected to the ground. The second capacitor surface is connected to the reverse " & example". The above-mentioned flip-flop is a specific type of D-type positive and negative money. It is formed by a standard D-type flip-flop and an inverter. In the control-portable electric=set electric#, the portable portable electric unit has - the scientific reading - the power supply for the second and second sets includes - the power switch and the above power supply control circuit clock pulse are connected to the power switch. For the second power one = power on, 'including - processing unit, - road includes - positive and negative, one:: _: ί source;: electricity: power control electric pulse is connected to the power supply unit, then The = circuit switch is connected between the clock terminal and the processing unit to the L::: for outputting an interrupt signal when the power switch is triggered. At the reset end and the second of the processing unit

6/17 S M405680 π, _ According to the processing issued earlier - the shutdown signal triggers the reset Γ The flip-flop resets the output to turn off the power supply unit, wherein the processing unit completes a shutdown procedure This shutdown signal is generated. ‘,°, the power control circuit of this creation is pressed at the power switch (the system is turned off by the system, waiting for the system to complete the _ program == source supply unit). This can reduce system damage caused by electricity during standby. In addition, when the user does not use the device between (4), the power of the device can be turned off by itself to save power. The above features and advantages of the creation can be more clearly understood, and the following examples can be used together with the drawings. The formula is described in detail below. , only [Embodiment] (苐 施 施 ) ) 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 The 猝 ☆ 壮 壮 u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u The power supply includes a power control circuit 122 and a power switch 124, wherein the electric power is injected; the power supply control circuit 122 is connected to the power supply control circuit 122, and the power supply is coupled to the power supply and the power supply is supplied to the processing unit. #^理早70110 For example, the portable electronic device (10) T) is a 4th chip and the power switch 12 is switched, but the present creation is not limited thereto. The 疋 button or the power-on (10) that can be automatically bounced back will be received after receiving the cap signal step. m yuan (4) The completed data and the soft-out sequence 'for example, the memory is not in the second order; 7/17 control circuit 122, Sui Emperor Li, ~ source supply Tsui-Yuan 130. === The road signal cs to turn off the power is not limited to ^ its power supply _ such as (10) battery or coffee ΐ 2. After ::τ is pressed, the power supply is turned off after the power control device program; ; The shutdown processing unit 110 is powered. 7 The power supply unit 130 is configured to explain the circuit of the power control device 120 every two days and FIG. 2A to FIG. 2A. The power supply of the Thunder Court of the control device 120

Sw implementation, and electric Ke (four) Φ & Figure 1 $ source open _ 124 to power switch your control circuit 122 package 210, the second circuit coffee and resistance r reverse ☆ 205, the first circuit

The output terminal Q, the clock peaks the mountain # a mountain state 205 has the round-in terminal D output terminal Q Li _ _ end / and the inverted output terminal b =. Resistor R1 _ is in standby power L source switch, the second /, pay test source VSB.铨ψ # ^ is the control signal cs. The output of the output Q is the first circuit 2]G is missing from the clock terminal c (1) 'for the first end of the power switch SW# touches the first 70 110 110.] 〇. The second circuit 22 〇 _ = = between the second end 112 of the interrupt signal to be used to reset the processing unit 110 APO trigger reset terminal R, x J5 " The shutdown signal supply unit U0' processes the single output terminal Q to turn off the power supply signal APO. Shut down after the shutdown program

8/17 S M4U^680 The first circuit 210 includes a resistor R4 and a diode d4. The spot R4 is coupled to the system voltage source V33 (SOC I/O 1 resistance first end 11 二 极 θ and the processing unit 110 The anode of the one-to-one version D1 is coupled to the first end of the processing unit ln - pole ancestor D1 _ pole _ at the time c 』 = the voltage source VSB 盥 clock ^ _ between the standby terminal (10) D. Capacitance C1_ The clock circuit C and the grounding second circuit 220 include resistors R6, R7, and Np C2. The resistor mountain is electrically coupled to the second end of the processing unit 110, and is coupled to the second end of the processing unit 110. Connected to the base of the NpN transistor β1. The resistance is between the base of the crystal and the ground. The base of the crystal is consumed by the common junction of the resistor R 6 and the resistor R 7 . The pole is connected to the reset terminal R of the flip-flop 205, and the emitter surface of the NpN transistor 接 is connected to the ground GND. The capacitor C2 is secreted at the reset terminal R and the ground GND. The above-mentioned flip-flop 2〇5 For example, the model TC7WH74FU or TC7WH74FK D-type flip-flop produced by t〇sh]ba, but this creation is not limited to this. Next, the circuit operation mode of FIG. 2A will be further explained, please refer to FIG. 2A together with 2B and FIG. 2B are waveform diagrams of the first embodiment of the present invention. First, in FIG. 2B, a high potential is indicated by "1", and a low potential is indicated by ''〇", and a voltage source standby voltage source in FIG. The VSB is, for example, a standby power source in the system, and is usually supplied by the clock power supply instead of the power supply unit 13 。. The system voltage source vb can be the same as the power source used by the processing unit 110. The output terminal Q is high potential "] , means that the output terminal Q of the power supply unit 130' is turned on at a low potential "〇, indicating that the power supply unit 130 is turned off. In the off state, the user can turn the flip-flop 205 by pressing the power switch SW. The pulse terminal C generates a signal of a negative pulse 251. Since the input terminal D of the flip-flop 2〇5 is high, the output of the flip-flop 205

S 9/17 knows that Q will be converted to high power. (4) Turning on the power supply unit (10) will rise as the system supplies power, and the financial signal will be converted to the potential (waveform 252). First, if the system needs to enter the state of automatic shutdown, the processing unit ^ Ί directly turns off the high-potential shutdown signal Αρ〇 to make the output terminal Q of the positive and negative 112〇5 switch to the low potential to turn off the power supply unit (10). In addition, the user power switch... performs a shutdown operation. When the user turns on the power switch SW, the clock terminal C generates a negative pulse 253 'the same = generates a negative pulse (four) break signal INT to notify the processing unit ug to perform the output of the plastic flip-flop 205 The potential of Q is maintained at a high potential, == the effect of pulse 253. After the processing unit has finished the shutdown process, the 4-bit shutdown signal 波形ρ〇 (waveform 254) is turned on to turn on the transistor = Ν, and the transistor B1 is turned on to cause the flip-flop - reset terminal & conversion element 13^ ' = and turn the round end ^ into a low potential to turn off the power supply single u site temple - at this time the processing unit] 〇 〇 has completed the shutdown procedure, so even if the supply of early yuan (10) _ will not affect the normal operation of the line . Note that the single dice is that after the power supply unit 130 is turned off, the processing S i t 4 causes the _ transistor B1 to be turned off (turned off). Positive and negative conversion to high potential, making the flip-flop 2 ah. Further, when the power source or the main battery is just connected, the C2 of the flip-flop 205 is not yet charged. Therefore, there is a short low potential generating capacity 2 = potential: _ source supply unit 13G. The state of the potential. : When, unless the history: the potential of the R terminal will be in high power, then the positive and negative crying 205 ΐ ί 疋 】 IG output shutdown signal AP 〇, please refer to, for example, τ_Β... 10/17 £ M405680 ' * . The specification of the D-type flip-flop of the TC7WH74FK is not described here. In addition, it is worth noting that the circuit and signal waveforms in Figures 2A and 2B above are only examples of the present invention. The selection of the south and low potentials and the selection of the enable level can be set according to design requirements. For example, if the shutdown signal APO of the low potential is used to indicate shutdown, it is only necessary to add a U inverter at the second end of the processing unit n〇. The NPN transistor B in Fig. 2A is used as a switch, and in another embodiment of the present invention, it can be realized by a Metal-Oxide-Semiconductor Field-Effect Transistor, for example, φ such as NM0SFET This creation is not limited to this. The above-mentioned circuit of Fig. 2A can be adjusted or increased or decreased according to the design requirements. According to the above description, those skilled in the art should be able to infer other embodiments, which will not be described here. (Different Embodiment)

Except for the D-type of the model TC7WH74FU or TC7WH74FK produced by Ding OSHIBA, the flip-flop 205 in Fig. 2a above can also be realized by using the standard d forward and reverse with the inverter. Please refer to FIG. 3. FIG. 3 is a circuit diagram of the power control device 20 of the second embodiment of the present invention. The main difference between Fig. 3 and Fig. 2A is that the D-type positive and negative 305 and the inverters 310, 320 are not allowed. Compared with the standard 〇-type flip-flop, the signal 疋 of the set terminal S and the reset terminal R of the flip-flop 205 in FIG. 2 is triggered by using an inverted signal, that is, when the reset terminal R is low. The output terminal Q is at a low potential, and when the set terminal S is at a low potential, the output terminal Q is at a high potential. This type of triggering is just the opposite of the triggering of a standard D-type flip-flop. Therefore, in FIG. 3, the first set terminal ss of the standard D-type flip-flop 305 is switched to the inverter 310, and the first reset terminal rr is coupled to the inverter 32A instead of the one in FIG. 2A. The flip-flop 205. The input terminal of the inverter 310 can be regarded as the set terminal S' in FIG. 2A and the input end of the inverter 320 can be regarded as the reset terminal R in FIG. 2A. The remaining circuit architecture in FIG. 3 is the same as that in FIG. 2A. For instructions, please refer to the description of the column M405680 'Do not repeat here. The above-mentioned first-implementation---such as SR positive or negative is a claw flip-flop, etc., in person % = knowledge, can, other positive and negative;: this = 205, 305, not to be described here. Geotechnical state Further, it is noted that the above-mentioned components or indirect or two-light electrical connection systems may include a direct transfer function, and the embodiment is not limited. ^^ to the required electrical signal transmission

: The electrical connection of the ADB can be achieved as long as it can achieve the desired: L delivery, the embodiment is not limited. In the above, the electrical means can be combined or used separately. The electronic components limited by the present invention may have functions due to different brands and models. = The circuit of the side = side can be different according to the design requirements (4) 敫 1, which is shown in Figure 2A. The implementation of graph...=two= is not limited to those with general knowledge. It should be inferred that other 3 fields of field = power control circuit (4) late: two,

π will supply the early material damage and reduce the power consumption of the power supply after the process is processed into a _ program. The present invention has been disclosed in the above embodiments, and is not limited to the scope of the present disclosure. The scope of protection that does not deviate from creation should be attached to the patent application form later =:::, this

12/17 S M405680 • . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of a portable electronic device according to a first embodiment of the present invention. 2A is a circuit diagram of the power control device 120 of the first embodiment of the present invention. FIG. 2B is a waveform diagram of the first embodiment of the present invention. 3 is a circuit diagram of the power control device 120 of the second embodiment of the present invention.

[Main component symbol description] 100: Portable electronic device VSB: Standby voltage source 110: Processing unit V33: System voltage source 111: First terminal R1 RR7: Resistor 112: Second terminal SW: Power switch 120: Power control Device D1: diode 122: power supply control circuit α~C2: capacitor 124: power switch GND: ground terminal 130: power supply unit B1: ΝΡΝ transistor INT: interrupt signal SS: first set terminal APO: shutdown signal RR: First reset terminal CS: control signal 205: flip-flop D: input terminal 210: first circuit Q: output terminal 220: second circuit C: clock terminal 251, 253: negative pulse S: set terminals 252, 254 : Waveform R : Reset terminal 305 : Standard D-type flip-flop Q ' Inverting output 310, 320 : Inverter 13/17

Claims (1)

M405680 VI. Scope of Application for Patent···1. 1. A power control circuit is adapted to control a power source. The electronic device has a ❸, ～4 electron source supply unit, and the power control circuit includes: The inverter 'has an input end, an output end, and 1 I. The input end is coupled to the standby standby, the second and second pulse ends are input to the power source, and the first and second brothers are 9 channels, which are connected to the clock end and the Processing the single-' and the first circuit between the interrupt signal and the reading of the first to the next month when the power switch is triggered, the first circuit is used between the reset terminal and the processing unit. _ The shutdown signal sent by the processing unit touches 2, "2 t resets the round output to turn off the power supply unit 7", and generates the shutdown signal after the meta-shutdown procedure. : 2. The power supply as shown in item 1 of the patent scope ^::-:limit 'coupled to the set end and the standby ^ - ί :ΐΓ 该 该 该 该 该 该 该 该 该 该 该The reset end and the waiting room; and the power control of the first = patent axis 1 item Connected to the system _ source and the processing unit of the first; in the processing unit - 苐 five - the standby 'source and then ~ and I4 / J7 M405680. A first capacitor coupled to the clock end and Between a ground terminal. 4. The power control circuit of claim 1, wherein the second circuit comprises: a sixth resistor, the first end of the sixth resistor is coupled to the second end of the processing unit; a resistor, coupled between the second end of the sixth resistor and a ground, an NPN transistor, the base of the NPN transistor being connected to the second end of the sixth resistor, the set of the NPN transistor The pole is coupled to the reset end of the flip-flop, the emitter of the NPN transistor is coupled to the ground, and a second capacitor is coupled to the reset terminal and the ground. 5. The power control circuit of claim 3, wherein the second circuit comprises: a sixth resistor, the first end of the sixth resistor being coupled to the second end of the processing unit; a seven-resistor coupled between the second end of the sixth resistor and the ground terminal, the NPN transistor, the base of the NPN transistor being coupled to the second end of the sixth resistor, the NPN transistor The collector is coupled to the reset end of the flip-flop, the emitter of the NPN transistor is coupled to the ground, and a second capacitor is coupled to the reset terminal and the ground. 6. The power control circuit of claim 1, wherein the second circuit comprises: a sixth resistor, the first end of the sixth resistor being coupled to the second end of the processing unit; a seventh resistor coupled between the second end of the sixth resistor and a ground terminal 15/17 W05680 - MOS transistor, the second end of the M 〇 transistor 3 'the end of the transistor j = The second end of the transistor is at the ground end; and the "-second capacitor" is coupled to the reset terminal and the ground terminal. Ray 2 ^ towel 4 is fully described in item 1. In the wire control circuit, a medium power switch is coupled between the clock terminal and a ground terminal. The power supply control circuit described in the second item of the second application is a D-type flip-flop. , A, 9', as described in the scope of claim 1, the ESC A positive and negative device includes: - source control (four) way, where the - standard D-type flip-flop, with the input, - the first a set terminal and the first reset terminal; a readout terminal, the clock, a first inverter, the input of the first inverter is coupled to the 'fixed end, The output end of the w-inverter is coupled to the first-set terminal. The second inverter is known, the second inverted-shearing ^, and the output of the second inverter are coupled. The first power supply is at the reset end, 10. a power control device, applicable to #, the portable electronic device has a process; the read power control device of the element ^ includes: a power supply early, a power supply And a power control circuit, comprising: a positive and negative benefit, having an input end, a mountain-setting end and a resetting end, the wheel-in end coupling: a clock-end end, an output end handle connected to the power source Supply line, - standby power source 'this off; a few days of sigmoid creep coupling to the power supply 16/17 a first circuit, coupled between the clock end and the first end of the processing unit, For outputting an interrupt signal to the processing unit when the power switch is triggered; and a second circuit coupled between the reset end and the second end of the processing unit for issuing according to the processing unit a shutdown signal triggers the reset terminal, causing the flip-flop to reset the output to close the a source supply unit, wherein the processing unit generates the shutdown signal after completing a shutdown process. 11. A portable electronic device comprising: a processing unit; a power supply unit; a power switch; and a power control circuit, including An inverter having an input terminal, an output terminal, a clock terminal, a setting terminal and a reset terminal, the input terminal being coupled to a standby voltage source, the output terminal being coupled to the power supply unit, The clock circuit is coupled to the power switch, and a first circuit is coupled between the clock end and the first end of the processing unit for outputting an interrupt signal to the processing when the power switch is triggered. And a second circuit coupled between the reset end and the second end of the processing unit, configured to trigger the reset end according to a shutdown signal sent by the processing unit, so that the flip-flop is heavy The output is set to turn off the power supply unit, wherein the processing unit generates the shutdown signal after completing a shutdown procedure.