TW201133759A - Trimming circuit - Google Patents

Abstract

A trimming circuit is provided. The trimming circuit had at least a trimming cell, and each of the at least trimming cells includes three current paths and a fuse. A first one of the current paths is interrupted when a second one of the current paths is uninterrupted, and the first one of the current paths is uninterrupted when the second one of the current paths is interrupted. When a trimming control signal is at an enable state, a third one of the current paths is uninterrupted, such that the fuse is blown. Based on the status of the fuse, the trimming circuit is capable of trimming an output voltage or an output current of an electric apparatus.

Description

201133759 —^-0013-TW 33I42twfdoc/n VI. Description of the Invention: [Technical Field] The present invention relates to an adjustment circuit, and an integrated package circuit (integrated circuit,: [Prior Art] - In the process of taking the peculiarity of the body, the integrated electrical energy drifts due to the deviation (4). Nen 1, "can be set to 1 3V, Bo County %-TAt π上玛" Originally pre-=1.3V' but in the end may be due to the deviation of the process two electric two: the circuit in the design of the circuit = [in addition to the electrical characteristics of the integrated body. The adjustment techniques include mine, household 敫 ^. For example, in (4) or laser adjustment side ^=:: road borrowing _ to =: laser cutting; = line integral electrical circuit chip after electrical special = incoming = road; :=, seal_circuit crystal wide, figure: seal = body: ^ = road wafer 5. Circuit 54. ϋ has a plurality of pads 52 and the core core circuit 54 is entangled in the integrated circuit chip, and electrical 201133759 HA-2009-〇〇13-TW 33142twf.doc/n is connected to the soldering iron 52. Since the core circuit 54 is packaged, it is difficult to adjust The present invention provides an adjustment circuit for an electronic device that can easily adjust its electrical characteristics even if the electronic device is a packaged integrated circuit chip. The present invention proposes an adjustment circuit. Including at least an adjustment unit, the adjustment unit includes a driving unit, a fuse, a first current path, a second current path, and a third current path. The towel unit reduces the input signal and the control signal. The first current path includes the serial connection. a first switch and a second switch, the first current path is coupled between the system voltage and the fuse. The second path # includes the second switch n flow path is switched to the common contact between the system voltage and the first switch and the second switch In addition, the third current path is lightly connected between the system voltage and the fuse, wherein the first switch, the Z switch, and the third switch are turned on or off according to the input signal. ^ In an embodiment of the present invention, When the input signal is in the first state, the first switch and the second switch are turned off, and the third switch is turned on. In an embodiment of the present invention, the above The three current path includes a third switch, when the input signal is in the first state and the control signal is adjusted to be sorrowful, the fourth switch is turned on to burn the fuse. In an embodiment of the invention, when the input signal is the first In the second state, the first switch and the second switch are turned on, and the third switch is turned off. In an embodiment of the invention, the output end of the adjusting circuit is coupled to the common connection between the first switch and the second switch Point, when the input signal is in the first 201133759 ΗΑ-ζυυν-0013-TW 33142twf.doc/n state, the voltage level of the output terminal is in the first state, and the fuse is not burned. In an embodiment of the present invention, the output end of the adjusting circuit is coupled to the common contact of the first switch and the second switch, and the voltage signal of the output terminal is in the second state when the wheel signal is in the second state. And the fuse is not burned. In the embodiment of the present invention, the output of the above-mentioned adjustment circuit engages with the common contact of the fresh switch, and when the fuse is burned, the electric house of the output terminal is in the first state. In the embodiment, the above-described driving_includes the second inverse two-phase phase and the inverse and closed. The output of the second inverter, the inverter, receives the input signal, and the output of the first inverter is the input end of the second inverter, the second switch and the third switch. 'The two inputs of the opposite gate receive the adjustment control signal and the anti-spoken 'reverse _ output is difficult to connect to the fourth „. In the consistent example of this ^ Ming, one of the above three and the fourth switch is a PMOS electric s touch & outside the office. ... electric day and limb, and the second switch is NMOS electric crystal, an electric hair ^ - real _ towel 'the above m path also includes = 6,, the current source is secret system voltage and the first - between the two. - Resistor ί 日月-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- In the example, the adjustment unit includes a plurality of voltage regulators that are adjusted to be connected to the series, and adjust the 201133759 n/\-zuwW13, TW 33142twfdoc/n circuit to further (4) m source and the first resistance. —Electrical_connected to the current source to provide-adjust the electromigration. The multiple electric devices connected in series adjust the electric house's respective electric switch regulators to include the second resistor and the disk ^^-connected-transistor. The voltage-regulation of the regulator::, the wheel-out end of the body unit, and the transistor of the i-day (four) of the electric runner The output of the second adjustment unit is in the embodiment of the invention, the above-mentioned adjustment circuit - the inverter, the second inverter and the third inverter. The output of the adjustment unit and the gate of the first - electricity: The third inverter is connected in series with the second inverter. The output of the second adjusting unit is adjusted by the second inverting (9)t voltage between the transistors of the limbs. The second inverter is coupled to the whole single unit. The element includes a plurality of regulators including a first current source; a first: open; a resistor, wherein each of the corresponding adjustment units of the current adjustment regulator is used to provide a voltage adjustment. In the embodiment of the present invention, each of the above-mentioned = and six-switches, the second current source is coupled in series with the second current: the corresponding adjustment unit is deleted or deleted, so that the sixth switch is controlled by the pair, The output of one of the adjustment units is controlled by the present invention. In the embodiment, the above-mentioned; I is early π, and the adjustment circuit further comprises a plurality of adjustments, including a plurality of adjustments, and a current mirror. Each of the 201133759 n^ Uu?-〇〇13-TW 33142twf.doc/n regulator includes electric fresh, corresponding to the above adjustment One of the yuan's "transmission_=open: = the mirror is coupled to the regulator' to provide - adjust the current. The adjustment current is adjusted according to the current from the current source of the current mirror. # / / , the above-mentioned respective adjustments - the second current is the younger brother /, the switch 'the second current source is connected to the flute ^ to the corresponding adjustment unit - the output power; the output of the above-mentioned adjustment unit of the switch should be The value of the adjustment circuit can be adjusted after the desired value is adjusted, or the current is adjusted or the current is adjusted to the desired value. Therefore, the voltage is adjusted to form the integrated circuit chip, and the circuit is integrated. It has been corrected by the circuit. The electric rolling characteristics can still be more obvious by adjusting the above-mentioned features and advantages (4), and the following is a detailed description with reference to the following figures. (4) The following is an embodiment. The present invention provides an adjustment electronic device: a sub-device For example, an integrated circuit, a circuit board, or ::. The piece that was adjusted. The adjustment circuit can be mounted on an external electronic device outside the packaged electronic package. The adjustment circuit includes at least - a part: or is independent of « 2 as the invention - implementation 敎 = early 1. Please refer to Figure 2. The packaged private circuit chip 100 of the block diagram of the bulk circuit die (10) includes a modulation circuit 201133759 HA-2009-0013-TW 33142 twf.doc/n integer circuit 110 and core circuit 120. The adjusting circuit 11 is configured to adjust the core circuit 120 according to the input signals A1-A3 and the adjustment control signal St. The input signals A1-A3 and the adjustment control signal St are transmitted to the adjustment circuit 110 via the pad 102 of the integrated circuit chip 1''. The adjustment circuit n〇 includes three adjustment units 200 for outputting the output signals T1-T3. The adjustment circuit no provides an adjustment voltage Vref or an adjustment current Iref to the core circuit 120. It is worth noting that the number of adjustment units 200 can be any positive integer. For example, in an embodiment of the invention, the adjustment circuit 110 includes an adjustment unit 200. Further, in another embodiment of the present invention, the adjustment circuit ho includes two or more adjustment units 200. Further, in the present embodiment, the input signals A1 - A3 are sequentially transferred to the adjustment circuit 110 via a single pad 1 〇 2 . However, in another embodiment of the invention, the input signals A1-A3 may be transmitted to the adjustment circuit 110 via different pads 102, respectively. In this embodiment, each of the adjustment units 2 includes a fuse 250. When the adjustment control signal & is received in the enabled state and the input signal Αχ is in the first state, the fuse 250 in the corresponding adjustment unit is burned regardless of the parameter X being 1, 2 or 3. In other words, when the input signal Αχ is in the first state, the control signal St is adjusted to burn the fuse 250 corresponding to the adjustment unit 200. Conversely, when the control signal is adjusted to the disabled state, the fuse 250 is not burned. Further, if the fuse 25 is not burned, the state corresponding to the output voltage TX is the same as the state of the corresponding input signal St. When the fuse 250 is burnt, the state of the corresponding output voltage τ 为 is the first state. More details on the operation of the adjustment unit 2〇〇 are as follows. In the present embodiment, the input signals Α1-Α3 are digital signals. Each round 201133759 πΛ-ζυυ^-ΟΟ 13-TW 33142twf.doc/n The incoming signal A1-A3 includes a 1-bit bit code for controlling the corresponding adjusting unit 200. During the adjustment of the core circuit 12〇. The bits of the input signals a1-A3 are changed step by step. For example, the bit code of the input signal A1-A3 can be sequentially changed to "000", "〇〇1", "〇1〇", "〇11", "1〇〇", "110" and " 111”. In this embodiment, if the bit code of one of the input signals A1-A3 is “Γ”, it indicates that the corresponding input signal is in the first state. If the bit code of one of the input signals A1-A3 is “ 〇,,, which indicates that the corresponding Lu input signal is in the second state. When the bit stone of the input signal A1-A3 is changed, the adjustment voltage Vref or the adjustment current Iref is adjusted accordingly. Therefore, the desired value of the adjustment voltage Vref or the adjustment current Iref can be determined by sequentially changing the bit code of the input signal A1_A3 before the fuse 250 of the adjustment unit 2 is burned. The bit code of the input signal A1-A3 is input to the adjustment unit 2〇〇 corresponding to the desired value of the adjustment voltage Vref, or the adjustment unit 200 corresponding to the determined adjustment current Iref, and the adjustment control signal St is changed from the disable state to the disable state. The energy state is such that the selected fuse 25A (or a single selected fuse 250) is burned according to the bit code (or state) of the input signal A1-A3, so that the adjustment voltage Vref or the adjustment current Iref can be adjusted to a desired value. After the selected fuse 250 (or a single selected fuse 25A) is burned according to the bit code of the input signal A1-A3, the operation of adjusting the core circuit 12A is completed. In the present embodiment, after the operation of adjusting the core circuit 12A is completed, the bit code of the input sfl number A1-A3 is maintained at "〇〇〇,, please see FIG. 3. The edge of FIG. 3 is shown as the present invention. - Block diagram of the adjustment unit 200 of the adjustment circuit of the embodiment. Each adjustment unit 2 includes a drive list 201133759 HA-2009-0013-TW 33142twf.doc/n element 210, a first current path 220, and a second current path 230 The third current path 240 and the fuse 250. The first current path 220 and the third current path 240 are both coupled between the system voltage Vdd and the fuse 250. The first current path 220 includes a first switch 222 and a second switch 224. The first switch 222 is connected in series with the second switch 224. The second current path 230 is coupled to the system voltage Vdd and the common contact A of the first switch 222 and the second switch 224. The third current path 240 includes a fourth switch 242. The §fl AX and the adjustment control signal St are input to the driving unit 210 to control the operations of the switches 222, 224, 232, and 242. The switching states of the first switch 222, the second switch 224, and the third switch 232 correspond to the input signal AX. Change while changing, and the fourth switch 242 The switch state changes according to the change of the input signal AX and the adjustment control signal St. The input signal AX changes from the first state to the second state or from the second state to the first state. Similarly, the adjustment control signal St is disabled. The state changes to the enabled state or changes from the enabled state to the disabled state. In an embodiment of the invention, the voltage level of the input signal AX in the first state is a high voltage level and the voltage level in the second state is The bit is at a low voltage level, and the voltage level of the control signal St in the disabled state is a high voltage level and the voltage level in the enabled state is a low voltage level. However, the present invention is not limited thereto. Referring to FIG. 4, FIG. 4 is a block diagram of an adjusting unit 200 when the input signal AX is in the first state and the control signal St is in the disabled state according to an embodiment of the present invention. In this embodiment, when the signal is input Αχ In the first state, the first switch 222 and the second switch 224 are turned off, and the third switch 232 is turned on. Therefore, the first current path 22 is interrupted, and the second 201133759 tm-/uuy-0013-TW 33142twf.doc/n current path The path 230 is connected. In addition, since the adjustment control signal St is in the disabled state, the fourth switch 242 is also turned off, so that the third current path 24 is interrupted. Since the second current path 230 is turned on, the adjustment unit 2〇〇 The output terminal 260 is coupled to the system voltage Vdd, and the output voltage TX of the output terminal 260 is at a high voltage level (ie, in the first state). In summary, in the embodiment of FIG. 4, when the input signal AX is at the When the state is adjusted and the control signal st is in the disabled state, the output voltage TX is in the first state. Please refer to Figure 5. Figure 5 is a block diagram showing the adjustment unit 200 when the input signal AX is in the second state and the control signal St is in the disabled state. When the input signal AX is in the second state, the first switch 222 and the second switch 224 are turned "on" and the third switch 232 is turned off. Therefore, the first current path 220 is connected and the second current path 230 is interrupted. When the adjustment control signal St is in the disabled state, the fourth switch 242 is turned off, causing the third current path 240 to be interrupted. Since the first current path 220 is connected, the current II of the current source 226 flows through the first switch 222, the second switch 224, and the fuse 250. The current II of the current source 226 is a small current, so that the fuse 250 is not burned by the current II flowing through the first switch 222. Additionally, since the impedance of current source 226 is much greater than the impedance of fuse 250, output voltage TX is pulled low (i.e., in the second state). In summary, in the embodiment of Fig. 5, when the input signal AX is in the second state and the control signal St is in the disabled state, the output voltage TX is in the second state. Please refer to Figure 6. FIG. 6 is a block diagram showing the adjustment unit 200 when the input signal AX is in the first state and the control signal St is in the enabled state. As shown in FIG. 6, when the input signal AX is in the first state, the first switch 222 and the 11201133759 HA-2009-0013-TW 33142twf.doc/n second switch 224 are turned off, and the third switch 232 is turned on. Therefore, the first current path 220 is interrupted and the second current path 230 is connected. When the adjustment control signal St is in the enable state and the input signal AX is in the first state, the fourth switch 242 is turned on, so that the third current path 240 is connected. Since the third current path 240 is connected, the current 12 from the system voltage Vdd flows through the resistor 244 and the fuse 250 to the ground GND. The current 12 is large enough to burn the fuse 250. Therefore, when the adjustment control signal St is changed from the disabled state to the enabled state, the input signal AX is in the first state, and the fuse 250 is burned by the current 12. · Please refer to Figure 7. Figure 7 is a block diagram showing the adjustment unit 200 when the fuse 25 is burned. One of the first current path 220 and the second current path 230 is interrupted, and the output terminal 260 of the adjustment unit 2A is coupled to the system voltage Vdd. For example, the first current path 22A can be interrupted and the second current path 230 can be connected, as shown in FIG. Conversely, in other embodiments, the second current path 230 can be interrupted while the first current path 22 is connected. Since the fuse 250 is burnt, the connection between the output terminal 26 of the adjustment unit 200 and the ground GND is cut off, and is coupled to the system voltage Vdd via one of the current paths 22A and 23〇φ. Therefore, the fuse 25 is burned and the output voltage TX is at the south voltage level (i.e., the first state). Please refer to Figure 8. FIG. 8 is a circuit diagram of an adjustment unit 2A according to an embodiment of the present invention. The driving unit 210 of the adjusting unit 200 includes a first inverted phase 712, a second inverter 714, and a reverse OR gate 716. The adjustment unit 2A includes, the current source 226, the first switch Qi, and the second switch Q2. The second current path 230 of the adjustment unit 70 200 includes a third switch Q3, the adjustment order 12 201133759 X Λ^ί L· v Ν·/

>0013-TW 33142twf.doc/n The second current path 240 of the element 200 includes a fourth switch Q4. In this embodiment, each of the first switch Q1, the third switch Q3, and the fourth switch q4 is a PMOS transistor, and the second switch Q2 is an NMOS transistor. The first phase inverter 712 receives the input signal AX, and the output of the first inverter 712 is coupled to the input of the second inverter 714, the second switch Q2 and the third switch Q3. The output of the second inverter 714 is coupled to the first switch Q1, and the two inputs of the inverse gate 716 receive the adjustment control signal St and the inverted input signal, respectively. The turn-off of the NAND gate 716 is coupled to the fourth switch q4. Therefore, when the input signal AX is at the high voltage level (i.e., in the first state), the first switch Q1 and the second switch Q2 are turned off, and the third switch Q3 is turned on. When the input signal AX is at a low voltage level (i.e., the second state), the first switch Q1 and the second switch Q2 are turned on, and the third switch Q3 is turned off. When the input signal AX is at a high voltage level (i.e., in the first state) and the control signal St is at a low voltage level (i.e., in an enabled state), the fourth switch is turned on to burn the fuse 250. Please refer to Figure 9. FIG. 9 is a circuit diagram of an adjustment circuit of FIG. 8 according to an embodiment of the invention. The adjustment circuit 800 includes an adjustment unit 2A, a current source 810, a resistor R, a voltage regulator 82A, and an inverter 83A. The adjustment voltage Vref is supplied to the adjustment circuit 8A, and the adjustment voltage Vref is adjustable based on the output voltage TX of the adjustment unit 200. When the wheel power-off τ χ is a high voltage level, the voltage q, that is, the transistor q of 820 is turned off, so that the current I of the current source 81 流 flows through the resistor R and the voltage regulator 82 电阻. Therefore, the adjustment voltage Vref is pulled up to (4)!^)]. When the output voltage τ χ is at a low voltage level, the transistor Q is turned on, so that the current I flows through the resistors 201133759 HA-^uuy-u013-TW 33142twf.doc/n R and the transistor Q. Therefore, the adjustment voltage Vref is pulled up to (IxR). Therefore, the voltage level according to the adjustment voltage Vref is set to [][X(R+R1yj or (IxR). Please refer to FIG. 10. FIG. 10 is a circuit diagram of the adjustment circuit 9A according to an embodiment of the present invention. Compared with the adjusting circuit 800, the adjusting circuit 9 further includes an inverter 840 coupled between the adjusting unit 200 and the inverter 830. Therefore, when the output voltage is high voltage level, the voltage regulator The transistor q of 820 is turned on, so that the current I of the current source 81 流 flows through the electric and the transistor Q. Therefore, the adjustment voltage Vref is pulled up to (IxR). When the output voltage TX is at a low voltage level, the electricity is charged. The crystal Q is turned off, so that I flows through the resistance ruler. Therefore, the adjustment voltage is pulled up to X(R+R1)]. In this embodiment, if the fuse of the adjustment unit 2〇〇 is burned out' The output voltage TX is at a low voltage level, so that the voltage (4) is set to [IX(R+R1)]. When the fuse of the adjustment unit is 250 = 'the output voltage TX is at a high voltage level, the adjustment voltage Μ 'adjusts the voltage Vref The original road ^ = silk (four) - the real adjustment of the electric meter under the Λ f whole circuit 1000 in the absence of inverter 83 〇 and _ 90f: the next When the 'adjustment circuit surface function is the same as the adjustment circuit of the adjustment unit 2GQ, the output end of the adjustment unit is directly connected to the off. It can be directly opened according to the wheel output voltage or the moon μ map 12 ° Figure 12 is the invention - The adjustment circuit of the embodiment 14 201133759 .... a ~-0013-TW 33142twf.doc / n circuit diagram of the 1100. The adjustment circuit includes the adjustment unit 200, the current source 810, the resistance R, the voltage regulator ιιι〇, ιι2〇, the reverse The phase regulators ΐ3ΐ, 1140 and 1150. The voltage regulator 111 is connected in series with 112. The voltage regulators im and mo respectively comprise a transistor 〇 and a resistor Ri or phantom. The adjustment voltage is adjustable and depends on the wheel voltage T1 and The state of Τ'2 determines its voltage value. Although the output voltages T1 and T2 of 2QG are both low voltage standards for two s weeks, the transistor Q of the 3 s' voltage regulator 1110 is turned on, and the voltage adjustment is 112. The transistor Q is turned off, causing the adjustment. The electric M Vref is pulled high to [Ix(R+R2)]. When the output voltage T1 is at the high voltage level and the output voltage is 2 = the voltage level, the voltage regulator And the 112 〇 transistor q is closed, so that the adjustment voltage Vref is pulled up to [Ix(R+Ri^Electrical emission 1 is a low voltage level and output voltage T2 is a high voltage level, and the transistor Q of ^mo#(10) is turned on, so that

St ^ = (1%. # two adjustment single ^ output power (four) level, the transistor Q of the voltage regulator coffee is turned on by the voltage Vref 1 ancient 1 Q, so that the adjustment electric & Vref is broken to the same [Ix (R+R1)]. Therefore 'is set to [Ix(R+R2)] and can be some rain, such as 冤i ef original T1 know T9 early morning 200 output voltage

The voltage level of the spear is adjusted to (IxR), [Ix (R _ + qing. Therefore, if the resistance R1 R [I = 2)] or the resistance value 'after the adjustment operation (four) [" ΓΓ 2)] Increase to [Ix (Teng)) or ^^ [Ix (R+R2)] to (IxR). Force-flying by please refer to Figure 13. Figure 13 shows the adjustment of the power of the present invention - 15 201133759 HA-^uuy-u〇13-TW 33142twf.doc/n Circuit diagram of circuit 1200. Compared to the adjustment circuit chest described in Fig. 12, the operation of the adjustment circuit 12GG does not use the inverter 丨 (10). · When the output voltages T1 and T2 are both low voltage levels, the adjustment voltage w is equal to (IxR). When the output voltage T1 (four) voltage level and the output voltage η is low voltage level 'adjust voltage Vref is equal to [Ix(R+ R2)]. When the output voltage τι is at a low voltage level and the output voltage T2 is at a high voltage level ^, the adjustment voltage Vref is equal to [Ix(R+R1)]. When the two adjustment units 2〇〇 are turned on the voltage T1 and When T2 is at the high voltage level, the adjustment voltage Vref is pulled up to [Ix(R+Rl+R2)]. Therefore, in the present embodiment, the adjustment voltage original φ is set to (IxR) and can be adjusted. To [Ix(R+R1)], [Ix(R+R2)] or [ Ix(R+Rl+R2)]. Please refer to FIG. 14. FIG. 14 is a circuit diagram of an adjustment circuit 1300 according to an embodiment of the present invention. The adjustment circuit 1300 includes three adjustment units 2, a current source 810, and a resistor. R, three voltage regulators 111A, 112A, 113A and four inverters 1130, 1150, 1170 and 1180. Voltage regulators 1110, 1120 and 1130 are connected in series. Voltage regulators, 111 〇, Π 20 And 1130 respectively comprise a transistor Q, a resistor R1, R2 or R3. The modulating voltage Vref is adjustable and the voltage value is determined according to the states of the output voltages ΤΙ, T2 and T3 of the three adjusting units 2〇〇. In the example, the adjustment voltage Vref is originally set to [Ix(R+R3)] and can be adjusted to (ixR), [Ix(R+Rl)]' [Ix(R+R2)]' [Ix(R+ Rl+R2)]' [Ix(R+Rl+R3)] n [Ix(R+R2+R3)] or [Ix(R+R1+R2+R3)]. Please refer to Fig. 15. Fig. 15 shows A circuit diagram of an adjustment circuit 1400 according to an embodiment of the present invention. The adjustment circuit 1400 includes an adjustment unit 2〇〇, 调16 201133759 ^ ^V^>0013-TW 33142twf.d〇c/n

Nodes 1410 and 1420 and resistor R. Regulators mo and 1420 are respectively = source = flow source 1412 or 1422 and fifth switch Q. In the example, each of the five switches Q is a PM〇st crystal. First current sources i4i2 and 1422 provide currents n and 12, respectively. t Among these fifth switches q are turned on, and the corresponding current η < 12 can flow through the electricity 16R. In other words, the adjustment voltage Vl, ef provided by the resistor R can be adjusted by controlling the five switches. Each of the fifth switches Q is turned on or off corresponding to the output electric bar T1 or T2 corresponding to the adjustment unit 4, respectively. In the embodiment of _ls, the fifth switch Q of the regulator is controlled by the corresponding wheel-out voltage ^, and the fifth switch Q of the regulator 1420 is controlled by the corresponding wheel-out voltage τ2. When the winter output voltage Ti is at a low voltage level, the transistor Q1 is turned off, so that the current of the H original HM may not flow through the transistor Qb, so that the gate of the regulator i4i〇 is connected to the gate of the Japanese limb Q to糸 电 ink Vdd. Therefore, the fifth switch Q of the regulator 141A is turned off, and the current 丨丨 may not flow through the resistor R. When the winter output voltage is at the high voltage level, the transistor Q1 is turned on, so that the current of the current source 1414 can flow through the crystal Qi, and the gate of the 141 〇 electric body Q of the regulator is grounded. Therefore, the fifth switch p of the regulator 141A is turned on, so that the current II can flow through the resistor r. Similarly, when the output voltage T2 is at a low voltage level, the output voltage of the inverter 1 * 1 $ is at a high voltage level such that the transistor Q2 is turned off. Therefore, the current of the current source 1416 may not come from the transistor. Q2, and the gate of the transistor q of the regulator 1420 is grounded. Therefore, the fifth switch Q of the regulator ι 42 被 is turned on, and the current 12 can flow through the resistor R. When the output voltage τ2 is at the high voltage level, the transistor Q2 is turned on, so that the current source 1416 17 201133759 iirv- 广 wide UJ13-TW 33142twf.doc / n: from the transistor Q 2, so that the regulator H 2 0 Gate of transistor Q

Hey, hey. Therefore, the fifth switch Q I of the regulator 1420 and the π·12 may not flow through the resistor R. That is, the current I flow R is determined by the wheel blocks Τ1 and Τ2. Therefore, the _voltage Μ is adjustable and is related to the output voltages T1 and T2 of the adjustment unit 2〇〇. 16. Figure 16 is a circuit diagram showing the adjustment of the embodiment of the present invention. Compared to the adjustment circuit in Figure ls, adjust

η -- With the fasting 30 and the other for outputting output 曰 曰 卜 正 early 70 2QQ. When the turn-on voltage 13 is at a low voltage level, it is turned off 'so that the current of the current source 1424 may not flow through the electric j Φ ' and the gate of the transistor q of the regulator _ is 5 5 周14 Deng's fifth switch Q is turned off;; hunger 3 can not flow the resistor R. When the output voltage is 3, it is high voltage

Bit 'Crystal Q3 breaks open, so that the current of current source 1424 may not flow through transistor Q3' and the gate of transistor Q of regulator 1430 is grounded. Therefore, the fifth switch Q of regulator 143G is turned on. Current 13 can flow through resistor R. Therefore, the adjustment voltage Vref is adjustable and is related to the output voltages ΤΙ, T2 and T3 of the three adjustment units 200. Month ί,,,, Η 17. Figure 17 is a circuit diagram showing an adjustment circuit 1600 according to an embodiment of the present invention. In contrast to the adjustment circuit 1500 of Figure 16, the resistor R in the adjustment circuit_ is replaced by a current mirror 1610 in the adjustment circuit 1_. Current mirror 1610 is coupled to regulators 1412, 1422 and 1432 to provide an adjustment current 1ref. Current mirror 1610 includes transistors Q4 and Q5. Adjustment 18 201133759 ΠΛ-^υυ^-0013-TW 33142twf.doc/n Current Iref is equal to the current flowing through the crystal. The turn-off voltage 三个^Τ2 of the three adjustment units 200 is adjustable and the current Iref is adjustable. Adjusted with three adjustments: two: this - pressure T1, T2 and T3. As early as the output of 200, the adjustment of the voltage or the adjustment of the current is determined. The desire to adjust the voltage or adjust the current:: ==Electrical signal to burn the fuse to correct the adjustment voltage or control t. Γ 'Even if the adjusted circuit has been packaged into a product t-round circuit (4), the air touch can still be obtained by the present invention. Although the present invention has been disclosed in the above embodiments, the present invention has the usual Those who know i can make some changes to the Ministry of Health, so this is the definition of the application for the special fiber package. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram of a conventional packaged integrated circuit chip. 2 is a block diagram of a wafer having an adjustment power circuit according to an embodiment of the invention. FIG. 3 illustrates an adjustment unit of an adjustment circuit according to an embodiment of the present invention. FIG. 4 illustrates an adjustment of an input signal in a first state and an adjustment control signal in an disabled state according to an embodiment of the present invention. A block diagram of the unit. ^ Figure 5, '.s shows the block diagram of the adjustment unit in the second state and adjusts the control signal in the state of Brahman 19 201133759, ixrv-^vv/^-w〇13-TW 33142twf.doc/n . Figure 6 depicts a block diagram of the adjustment unit when the input signal is in the first state and the energy is adjusted. I"

7 is a block diagram of an adjustment unit when a fuse is burned. FIG. 8 is a second embodiment of an adjustment unit according to an embodiment of the present invention. FIG. FIG. 11 is a kiss diagram of an adjustment circuit according to another embodiment of the present invention. FIG. 12 is a schematic diagram showing an adjustment of another embodiment of the present invention. FIG. 13 is an electrical diagram of an adjustment circuit according to another embodiment of the present invention. FIG. 14 is a schematic diagram of an adjustment circuit according to another embodiment of the present invention. FIG. 15 is a schematic diagram of an adjustment circuit according to another embodiment of the present invention. FIG. 16 is a diagram showing the = team_ of the adjustment circuit according to another embodiment of the present invention. FIG. 17 is a diagram showing an adjustment circuit of another embodiment of the present invention. [Description of main component symbols] 50, 100: integrated circuit wafers 52, 102: pads 110, 800, 900, 1 〇〇〇, 11 〇〇: adjustment falls 54, 120: core circuit 200: adjustment unit 210: Drive unit 220, 230, 240: current path 222, 224, 232, 242: switch 20 201133759

/ ...少0013-TW 33142twf.doc/n 226, 810, 1412, 1414, 1416, 1422, 1424, 1432: Current source 244, R, R1, R2: Resistor 2 5 0 · Fuse 260: Output 712, 714 830, 840, 1130~1180, 1418: Inverter 716: Inverting gates 820, 1110, 1120: Voltage regulators 1410, 1420, 1430: Regulators T1 to T3, Tx: Output voltage St: Adjusting control signal A : Contact A1~A3, Αχ: Input signal 4: Inverting input signal Vdd: 糸 voltage GND: Ground I, II, 12, 13: Current Q, Q1~Q5: Transistor switch Vref: Adjust voltage Iref: Adjust Current 21

Claims (1)

201133759 ^ nrt.-zwy-<j〇13-TW 142twf.doc/n VII. Patent application scope: 1. An adjustment circuit includes at least one § week unit, each of which includes: a driving unit, receiving An input signal and an adjustment control signal; a fuse; a first current path comprising a first switch and a second switch connected in series, wherein the first current path is coupled between a system voltage and the fuse; ', ·Electric muscles are only different (1) Le'琢 second current path lies between the system voltage and the common connection between the first switch and the second switch; and - the third current path, minus the I And the protection switch; wherein the first switch, the second switch, and the third input signal are turned on or off. , Yu 2. If the adjustment circuit described in the scope of the patent application, When the input signal is in the first state, the first-open=field closed, and the third_opened I...WJ-off is a 3. As described in the second application of the patent scope, the wide current path #includes - fourth The switch, when the wheel enters the second or second, the adjustment control is called the enable state, the *, the fuse. The switch is turned on to burn: The adjustment circuit described in the first item of the patent scope, wherein when the input "the second state of the shirt, the first - and the second opening; ^ 22 201133759 --------- <0013-TW 33142 twf.doc/n and the third switch is turned off. The adjustment circuit according to claim 1, wherein an output end of the adjustment circuit is coupled to the first a common contact of the switch and the second switch. When the input signal is in the first state, the voltage level of the output is in the first state, and the fuse is not burned. 6. As described in claim 1 An adjustment circuit, wherein an output end of the adjustment circuit is coupled to a common contact of the first switch and the second switch, and when the input signal is in the state of the second phase, the voltage level of the output terminal is in the first The second state, and the fuse is not burned. 7. The adjustment circuit of claim 1, wherein an output end of the adjustment circuit is coupled to a common contact of the first switch and the second switch When the fuse is burned, the voltage level of the output is at the first 8. The adjustment circuit of claim 1, wherein the driving unit comprises: a second inverter, the output of the second inverter is coupled to the first opening and closing; a first inverted state, receiving the input signal, an output end of the first inverter coupled to the input end of the second inverter, the second switch and the third switch; and a reverse gate, two of The input terminal receives the adjustment control signal and the inverted input signal, and the output end of the anti-gate is coupled to the fourth switch. 9. The adjustment circuit according to the item of claim 2, wherein the first switch The third switch and the fourth switch are -pM〇s transistors, and 23 33142twf.doc/n 201133759 i3.TW the second switch is an NMOS transistor. 10. As described in claim 1 The adjusting circuit, wherein the first current path further comprises a current source coupled between the system voltage and the first switch. 11. The adjusting circuit according to claim 1, wherein the The third current path further includes a resistor coupled to the resistor The adjustment circuit of the first aspect of the invention, wherein the adjustment unit comprises a first adjustment unit and a second adjustment unit, and the adjustment circuit further comprises: a current a first resistor coupled to the current source to provide an adjustment voltage; and a plurality of voltage regulators connected in series to adjust the adjustment voltage, each of the voltage regulators including a second resistor and in parallel with the second resistor The transistor of the first voltage regulator of the voltage regulator is coupled to the output of the first adjusting unit, and the second voltage regulator of the voltage regulator The gate of the crystal is coupled to the output of the second adjustment unit. 13. The adjustment circuit of claim 12, further comprising: a first inverter coupled to the output of the first adjustment unit and the gate of the transistor of the first voltage regulator a second inverter; and a third inverter connected in series with the second inverter; 24 y-0013-TW 33142twf.doc/n 201133759 wherein the second counter of the second voltage regulator The phase device and the third inverter are lightly connected to the second=connecting end. Μ Μ - 5 weeks of early 兀 轮 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 The method further includes: a switch, wherein each of the adjustments is cried, the fifth ns, the younger-current source and the - fifth unit--the output; the === is controlled by the corresponding ones: the coupling is adjusted , provide - adjust the voltage. The regulator turns: === the adjustment circuit, wherein each of the sixth switch is connected in series, the switch 'the output voltage of the second current source is made;; the output of the corresponding adjustment unit adjusting unit The voltage=switch is controlled by the corresponding two single=== whole circuits, wherein the plurality of circuits are further included: a switch, wherein the regulator includes a -first current source and - the fifth whole unit: = the fifth switch is controlled by the change of the corresponding one of the voltages of the corresponding _; and = the flow mirror, connected to the regulator, providing 1 /, the adjustment current is based on the current source The current is adjusted. 4 receiving the adjustment circuit from the first-electrode: the circuit of claim 16 wherein each of the two current sources is connected to the sixth switch, and the second current source is connected to the second current source 25 20113375913.TW 33142twf.doc/n The sixth switch is controlled by the output voltage of one of the corresponding adjustment units, such that a corresponding fifth switch is controlled by a change of an output voltage of one of the corresponding adjustment units. 20113375913.TW 33142twf.doc/n 26